diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocController.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocController.java
new file mode 100644
index 00000000..467dc8cf
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocController.java
@@ -0,0 +1,116 @@
+package org.dromara.oa.erp.controller;
+
+import java.util.List;
+
+import lombok.RequiredArgsConstructor;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.validation.constraints.*;
+import cn.dev33.satoken.annotation.SaCheckPermission;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.validation.annotation.Validated;
+import org.dromara.common.idempotent.annotation.RepeatSubmit;
+import org.dromara.common.log.annotation.Log;
+import org.dromara.common.web.core.BaseController;
+import org.dromara.common.mybatis.core.page.PageQuery;
+import org.dromara.common.core.domain.R;
+import org.dromara.common.core.validate.AddGroup;
+import org.dromara.common.core.validate.EditGroup;
+import org.dromara.common.log.enums.BusinessType;
+import org.dromara.common.excel.utils.ExcelUtil;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocVo;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocBo;
+import org.dromara.oa.erp.service.IErpTimesheetPreAllocService;
+import org.dromara.common.mybatis.core.page.TableDataInfo;
+
+/**
+ * 预投工时分配
+ * 前端访问路由地址为:/oa/erp/timesheetPreAlloc
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Validated
+@RequiredArgsConstructor
+@RestController
+@RequestMapping("/erp/timesheetPreAlloc")
+public class ErpTimesheetPreAllocController extends BaseController {
+
+    private final IErpTimesheetPreAllocService erpTimesheetPreAllocService;
+
+    /**
+     * 查询预投工时分配列表
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:list")
+    @GetMapping("/list")
+    public TableDataInfo<ErpTimesheetPreAllocVo> list(ErpTimesheetPreAllocBo bo, PageQuery pageQuery) {
+        return erpTimesheetPreAllocService.queryPageList(bo, pageQuery);
+    }
+
+    /**
+     * 导出预投工时分配列表
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:export")
+    @Log(title = "预投工时分配", businessType = BusinessType.EXPORT)
+    @PostMapping("/export")
+    public void export(ErpTimesheetPreAllocBo bo, HttpServletResponse response) {
+        List<ErpTimesheetPreAllocVo> list = erpTimesheetPreAllocService.queryList(bo);
+        ExcelUtil.exportExcel(list, "预投工时分配", ErpTimesheetPreAllocVo.class, response);
+    }
+
+    /**
+     * 获取预投工时分配详细信息
+     *
+     * @param allocId 主键
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:query")
+    @GetMapping("/{allocId}")
+    public R<ErpTimesheetPreAllocVo> getInfo(@NotNull(message = "主键不能为空")
+                                     @PathVariable("allocId") Long allocId) {
+        return R.ok(erpTimesheetPreAllocService.queryById(allocId));
+    }
+
+    /**
+     * 新增预投工时分配
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:add")
+    @Log(title = "预投工时分配", businessType = BusinessType.INSERT)
+    @RepeatSubmit()
+    @PostMapping()
+    public R<Void> add(@Validated(AddGroup.class) @RequestBody ErpTimesheetPreAllocBo bo) {
+        return toAjax(erpTimesheetPreAllocService.insertByBo(bo));
+    }
+
+    /**
+     * 修改预投工时分配
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:edit")
+    @Log(title = "预投工时分配", businessType = BusinessType.UPDATE)
+    @RepeatSubmit()
+    @PutMapping()
+    public R<Void> edit(@Validated(EditGroup.class) @RequestBody ErpTimesheetPreAllocBo bo) {
+        return toAjax(erpTimesheetPreAllocService.updateByBo(bo));
+    }
+
+    /**
+     * 删除预投工时分配
+     *
+     * @param allocIds 主键串
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAlloc:remove")
+    @Log(title = "预投工时分配", businessType = BusinessType.DELETE)
+    @DeleteMapping("/{allocIds}")
+    public R<Void> remove(@NotEmpty(message = "主键不能为空")
+                          @PathVariable("allocIds") Long[] allocIds) {
+        return toAjax(erpTimesheetPreAllocService.deleteWithValidByIds(List.of(allocIds), true));
+    }
+
+    /**
+     * 下拉框查询预投工时分配列表
+     */
+    @GetMapping("/getErpTimesheetPreAllocList")
+    public R<List<ErpTimesheetPreAllocVo>> getErpTimesheetPreAllocList(ErpTimesheetPreAllocBo bo) {
+        List<ErpTimesheetPreAllocVo> list = erpTimesheetPreAllocService.queryList(bo);
+        return R.ok(list);
+    }
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocDetailController.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocDetailController.java
new file mode 100644
index 00000000..9839a450
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/controller/ErpTimesheetPreAllocDetailController.java
@@ -0,0 +1,116 @@
+package org.dromara.oa.erp.controller;
+
+import java.util.List;
+
+import lombok.RequiredArgsConstructor;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.validation.constraints.*;
+import cn.dev33.satoken.annotation.SaCheckPermission;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.validation.annotation.Validated;
+import org.dromara.common.idempotent.annotation.RepeatSubmit;
+import org.dromara.common.log.annotation.Log;
+import org.dromara.common.web.core.BaseController;
+import org.dromara.common.mybatis.core.page.PageQuery;
+import org.dromara.common.core.domain.R;
+import org.dromara.common.core.validate.AddGroup;
+import org.dromara.common.core.validate.EditGroup;
+import org.dromara.common.log.enums.BusinessType;
+import org.dromara.common.excel.utils.ExcelUtil;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocDetailVo;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocDetailBo;
+import org.dromara.oa.erp.service.IErpTimesheetPreAllocDetailService;
+import org.dromara.common.mybatis.core.page.TableDataInfo;
+
+/**
+ * 预投工时分配明细
+ * 前端访问路由地址为:/oa/erp/timesheetPreAllocDetail
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Validated
+@RequiredArgsConstructor
+@RestController
+@RequestMapping("/erp/timesheetPreAllocDetail")
+public class ErpTimesheetPreAllocDetailController extends BaseController {
+
+    private final IErpTimesheetPreAllocDetailService erpTimesheetPreAllocDetailService;
+
+    /**
+     * 查询预投工时分配明细列表
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:list")
+    @GetMapping("/list")
+    public TableDataInfo<ErpTimesheetPreAllocDetailVo> list(ErpTimesheetPreAllocDetailBo bo, PageQuery pageQuery) {
+        return erpTimesheetPreAllocDetailService.queryPageList(bo, pageQuery);
+    }
+
+    /**
+     * 导出预投工时分配明细列表
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:export")
+    @Log(title = "预投工时分配明细", businessType = BusinessType.EXPORT)
+    @PostMapping("/export")
+    public void export(ErpTimesheetPreAllocDetailBo bo, HttpServletResponse response) {
+        List<ErpTimesheetPreAllocDetailVo> list = erpTimesheetPreAllocDetailService.queryList(bo);
+        ExcelUtil.exportExcel(list, "预投工时分配明细", ErpTimesheetPreAllocDetailVo.class, response);
+    }
+
+    /**
+     * 获取预投工时分配明细详细信息
+     *
+     * @param allocDetailId 主键
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:query")
+    @GetMapping("/{allocDetailId}")
+    public R<ErpTimesheetPreAllocDetailVo> getInfo(@NotNull(message = "主键不能为空")
+                                     @PathVariable("allocDetailId") Long allocDetailId) {
+        return R.ok(erpTimesheetPreAllocDetailService.queryById(allocDetailId));
+    }
+
+    /**
+     * 新增预投工时分配明细
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:add")
+    @Log(title = "预投工时分配明细", businessType = BusinessType.INSERT)
+    @RepeatSubmit()
+    @PostMapping()
+    public R<Void> add(@Validated(AddGroup.class) @RequestBody ErpTimesheetPreAllocDetailBo bo) {
+        return toAjax(erpTimesheetPreAllocDetailService.insertByBo(bo));
+    }
+
+    /**
+     * 修改预投工时分配明细
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:edit")
+    @Log(title = "预投工时分配明细", businessType = BusinessType.UPDATE)
+    @RepeatSubmit()
+    @PutMapping()
+    public R<Void> edit(@Validated(EditGroup.class) @RequestBody ErpTimesheetPreAllocDetailBo bo) {
+        return toAjax(erpTimesheetPreAllocDetailService.updateByBo(bo));
+    }
+
+    /**
+     * 删除预投工时分配明细
+     *
+     * @param allocDetailIds 主键串
+     */
+    @SaCheckPermission("oa/erp:timesheetPreAllocDetail:remove")
+    @Log(title = "预投工时分配明细", businessType = BusinessType.DELETE)
+    @DeleteMapping("/{allocDetailIds}")
+    public R<Void> remove(@NotEmpty(message = "主键不能为空")
+                          @PathVariable("allocDetailIds") Long[] allocDetailIds) {
+        return toAjax(erpTimesheetPreAllocDetailService.deleteWithValidByIds(List.of(allocDetailIds), true));
+    }
+
+    /**
+     * 下拉框查询预投工时分配明细列表
+     */
+    @GetMapping("/getErpTimesheetPreAllocDetailList")
+    public R<List<ErpTimesheetPreAllocDetailVo>> getErpTimesheetPreAllocDetailList(ErpTimesheetPreAllocDetailBo bo) {
+        List<ErpTimesheetPreAllocDetailVo> list = erpTimesheetPreAllocDetailService.queryList(bo);
+        return R.ok(list);
+    }
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAlloc.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAlloc.java
new file mode 100644
index 00000000..483bfd9f
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAlloc.java
@@ -0,0 +1,109 @@
+package org.dromara.oa.erp.domain;
+
+import org.dromara.common.tenant.core.TenantEntity;
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import java.util.Date;
+import com.fasterxml.jackson.annotation.JsonFormat;
+
+import java.io.Serial;
+
+/**
+ * 预投工时分配对象 erp_timesheet_pre_alloc
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@TableName("erp_timesheet_pre_alloc")
+public class ErpTimesheetPreAlloc extends TenantEntity {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 分配单ID
+     */
+    @TableId(value = "alloc_id", type = IdType.AUTO)
+    private Long allocId;
+
+    /**
+     * 分配单编号
+     */
+    private String allocCode;
+
+    /**
+     * 月份编码(YYYYMM)
+     */
+    private String monthCode;
+
+    /**
+     * 关联月标准工时ID(erp_timesheet_standard_month)
+     */
+    private Long standardMonthId;
+
+    /**
+     * 项目ID(备件、物流)
+     */
+    private Long projectId;
+
+    /**
+     * 预投项目编码(冗余)
+     */
+    private String projectCode;
+
+    /**
+     * 预投项目名称(冗余)
+     */
+    private String projectName;
+
+    /**
+     * 来源预投工时合计(天,带出汇总)
+     */
+    private Long sourceTotalHours;
+
+    /**
+     * 已分配合计(天)
+     */
+    private Long allocatedTotalHours;
+
+    /**
+     * 涉及人数
+     */
+    private Long staffCount;
+
+    /**
+     * 单据状态（0未分配 1部分分配 2已分配）
+     */
+    private String allocStatus;
+
+    /**
+     * 是否已回写月汇总（0否 1是）
+     */
+    private String appliedFlag;
+
+    /**
+     * 回写关联的月汇总主表ID
+     */
+    private Long summaryId;
+
+    /**
+     * 回写月汇总时间
+     */
+    private Date applyTime;
+
+    /**
+     * 备注
+     */
+    private String remark;
+
+    /**
+     * 删除标志（0存在 1删除）
+     */
+    @TableLogic
+    private String delFlag;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAllocDetail.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAllocDetail.java
new file mode 100644
index 00000000..9541f05c
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpTimesheetPreAllocDetail.java
@@ -0,0 +1,87 @@
+package org.dromara.oa.erp.domain;
+
+import org.dromara.common.tenant.core.TenantEntity;
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+import java.io.Serial;
+
+/**
+ * 预投工时分配明细对象 erp_timesheet_pre_alloc_detail
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@TableName("erp_timesheet_pre_alloc_detail")
+public class ErpTimesheetPreAllocDetail extends TenantEntity {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 分配明细ID
+     */
+    @TableId(value = "alloc_detail_id", type = IdType.AUTO)
+    private Long allocDetailId;
+
+    /**
+     * 分配单ID
+     */
+    private Long allocId;
+
+    /**
+     * 排序号
+     */
+    private Long sortOrder;
+
+    /**
+     * 原项目ID
+     */
+    private Long originalProjectId;
+
+    /**
+     * 原项目编码(冗余)
+     */
+    private String originalProjectCode;
+
+    /**
+     * 原项目名称(冗余)
+     */
+    private String originalProjectName;
+
+    /**
+     * 目标实际项目ID
+     */
+    private Long targetProjectId;
+
+    /**
+     * 目标项目编码(冗余)
+     */
+    private String targetProjectCode;
+
+    /**
+     * 目标项目名称(冗余)
+     */
+    private String targetProjectName;
+
+    /**
+     * 分配工时(天)
+     */
+    private Long allocHours;
+
+    /**
+     * 备注
+     */
+    private String remark;
+
+    /**
+     * 删除标志（0存在 1删除）
+     */
+    @TableLogic
+    private String delFlag;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocBo.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocBo.java
new file mode 100644
index 00000000..7c216fe0
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocBo.java
@@ -0,0 +1,108 @@
+package org.dromara.oa.erp.domain.bo;
+
+import org.dromara.oa.erp.domain.ErpTimesheetPreAlloc;
+import org.dromara.common.mybatis.core.domain.BaseEntity;
+import org.dromara.common.core.validate.AddGroup;
+import org.dromara.common.core.validate.EditGroup;
+import io.github.linpeilie.annotations.AutoMapper;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import jakarta.validation.constraints.*;
+import java.util.Date;
+import com.fasterxml.jackson.annotation.JsonFormat;
+
+/**
+ * 预投工时分配业务对象 erp_timesheet_pre_alloc
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@AutoMapper(target = ErpTimesheetPreAlloc.class, reverseConvertGenerate = false)
+public class ErpTimesheetPreAllocBo extends BaseEntity {
+
+    /**
+     * 分配单ID
+     */
+    @NotNull(message = "分配单ID不能为空", groups = { EditGroup.class })
+    private Long allocId;
+
+    /**
+     * 分配单编号
+     */
+    @NotBlank(message = "分配单编号不能为空", groups = { AddGroup.class, EditGroup.class })
+    private String allocCode;
+
+    /**
+     * 月份编码(YYYYMM)
+     */
+    @NotBlank(message = "月份编码(YYYYMM)不能为空", groups = { AddGroup.class, EditGroup.class })
+    private String monthCode;
+
+    /**
+     * 关联月标准工时ID(erp_timesheet_standard_month)
+     */
+    private Long standardMonthId;
+
+    /**
+     * 项目ID(备件、物流)
+     */
+    @NotNull(message = "项目ID(备件、物流)不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long projectId;
+
+    /**
+     * 预投项目编码(冗余)
+     */
+    private String projectCode;
+
+    /**
+     * 预投项目名称(冗余)
+     */
+    private String projectName;
+
+    /**
+     * 来源预投工时合计(天,带出汇总)
+     */
+    @NotNull(message = "来源预投工时合计(天,带出汇总)不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long sourceTotalHours;
+
+    /**
+     * 已分配合计(天)
+     */
+    @NotNull(message = "已分配合计(天)不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long allocatedTotalHours;
+
+    /**
+     * 涉及人数
+     */
+    private Long staffCount;
+
+    /**
+     * 单据状态（0未分配 1部分分配 2已分配）
+     */
+    @NotBlank(message = "单据状态（0未分配 1部分分配 2已分配）不能为空", groups = { AddGroup.class, EditGroup.class })
+    private String allocStatus;
+
+    /**
+     * 是否已回写月汇总（0否 1是）
+     */
+    private String appliedFlag;
+
+    /**
+     * 回写关联的月汇总主表ID
+     */
+    private Long summaryId;
+
+    /**
+     * 回写月汇总时间
+     */
+    private Date applyTime;
+
+    /**
+     * 备注
+     */
+    private String remark;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocDetailBo.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocDetailBo.java
new file mode 100644
index 00000000..58225dd4
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpTimesheetPreAllocDetailBo.java
@@ -0,0 +1,84 @@
+package org.dromara.oa.erp.domain.bo;
+
+import org.dromara.oa.erp.domain.ErpTimesheetPreAllocDetail;
+import org.dromara.common.mybatis.core.domain.BaseEntity;
+import org.dromara.common.core.validate.AddGroup;
+import org.dromara.common.core.validate.EditGroup;
+import io.github.linpeilie.annotations.AutoMapper;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import jakarta.validation.constraints.*;
+
+/**
+ * 预投工时分配明细业务对象 erp_timesheet_pre_alloc_detail
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@AutoMapper(target = ErpTimesheetPreAllocDetail.class, reverseConvertGenerate = false)
+public class ErpTimesheetPreAllocDetailBo extends BaseEntity {
+
+    /**
+     * 分配明细ID
+     */
+    @NotNull(message = "分配明细ID不能为空", groups = { EditGroup.class })
+    private Long allocDetailId;
+
+    /**
+     * 分配单ID
+     */
+    @NotNull(message = "分配单ID不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long allocId;
+
+    /**
+     * 排序号
+     */
+    private Long sortOrder;
+
+    /**
+     * 原项目ID
+     */
+    @NotNull(message = "原项目ID不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long originalProjectId;
+
+    /**
+     * 原项目编码(冗余)
+     */
+    private String originalProjectCode;
+
+    /**
+     * 原项目名称(冗余)
+     */
+    private String originalProjectName;
+
+    /**
+     * 目标实际项目ID
+     */
+    @NotNull(message = "目标实际项目ID不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long targetProjectId;
+
+    /**
+     * 目标项目编码(冗余)
+     */
+    private String targetProjectCode;
+
+    /**
+     * 目标项目名称(冗余)
+     */
+    private String targetProjectName;
+
+    /**
+     * 分配工时(天)
+     */
+    @NotNull(message = "分配工时(天)不能为空", groups = { AddGroup.class, EditGroup.class })
+    private Long allocHours;
+
+    /**
+     * 备注
+     */
+    private String remark;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocDetailVo.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocDetailVo.java
new file mode 100644
index 00000000..1d95396e
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocDetailVo.java
@@ -0,0 +1,98 @@
+package org.dromara.oa.erp.domain.vo;
+
+import org.dromara.oa.erp.domain.ErpTimesheetPreAllocDetail;
+import cn.idev.excel.annotation.ExcelIgnoreUnannotated;
+import cn.idev.excel.annotation.ExcelProperty;
+import org.dromara.common.excel.annotation.ExcelDictFormat;
+import org.dromara.common.excel.convert.ExcelDictConvert;
+import io.github.linpeilie.annotations.AutoMapper;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.Date;
+
+
+
+/**
+ * 预投工时分配明细视图对象 erp_timesheet_pre_alloc_detail
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@ExcelIgnoreUnannotated
+@AutoMapper(target = ErpTimesheetPreAllocDetail.class)
+public class ErpTimesheetPreAllocDetailVo implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 分配明细ID
+     */
+    @ExcelProperty(value = "分配明细ID")
+    private Long allocDetailId;
+
+    /**
+     * 分配单ID
+     */
+    @ExcelProperty(value = "分配单ID")
+    private Long allocId;
+
+    /**
+     * 排序号
+     */
+    @ExcelProperty(value = "排序号")
+    private Long sortOrder;
+
+    /**
+     * 原项目ID
+     */
+    @ExcelProperty(value = "原项目ID")
+    private Long originalProjectId;
+
+    /**
+     * 原项目编码(冗余)
+     */
+    @ExcelProperty(value = "原项目编码(冗余)")
+    private String originalProjectCode;
+
+    /**
+     * 原项目名称(冗余)
+     */
+    @ExcelProperty(value = "原项目名称(冗余)")
+    private String originalProjectName;
+
+    /**
+     * 目标实际项目ID
+     */
+    @ExcelProperty(value = "目标实际项目ID")
+    private Long targetProjectId;
+
+    /**
+     * 目标项目编码(冗余)
+     */
+    @ExcelProperty(value = "目标项目编码(冗余)")
+    private String targetProjectCode;
+
+    /**
+     * 目标项目名称(冗余)
+     */
+    @ExcelProperty(value = "目标项目名称(冗余)")
+    private String targetProjectName;
+
+    /**
+     * 分配工时(天)
+     */
+    @ExcelProperty(value = "分配工时(天)")
+    private Long allocHours;
+
+    /**
+     * 备注
+     */
+    @ExcelProperty(value = "备注")
+    private String remark;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocVo.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocVo.java
new file mode 100644
index 00000000..1a8e1c67
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpTimesheetPreAllocVo.java
@@ -0,0 +1,126 @@
+package org.dromara.oa.erp.domain.vo;
+
+import java.util.Date;
+import com.fasterxml.jackson.annotation.JsonFormat;
+import org.dromara.oa.erp.domain.ErpTimesheetPreAlloc;
+import cn.idev.excel.annotation.ExcelIgnoreUnannotated;
+import cn.idev.excel.annotation.ExcelProperty;
+import org.dromara.common.excel.annotation.ExcelDictFormat;
+import org.dromara.common.excel.convert.ExcelDictConvert;
+import io.github.linpeilie.annotations.AutoMapper;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.Date;
+
+
+
+/**
+ * 预投工时分配视图对象 erp_timesheet_pre_alloc
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@Data
+@ExcelIgnoreUnannotated
+@AutoMapper(target = ErpTimesheetPreAlloc.class)
+public class ErpTimesheetPreAllocVo implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * 分配单ID
+     */
+    @ExcelProperty(value = "分配单ID")
+    private Long allocId;
+
+    /**
+     * 分配单编号
+     */
+    @ExcelProperty(value = "分配单编号")
+    private String allocCode;
+
+    /**
+     * 月份编码(YYYYMM)
+     */
+    @ExcelProperty(value = "月份编码(YYYYMM)")
+    private String monthCode;
+
+    /**
+     * 关联月标准工时ID(erp_timesheet_standard_month)
+     */
+    @ExcelProperty(value = "关联月标准工时ID(erp_timesheet_standard_month)")
+    private Long standardMonthId;
+
+    /**
+     * 项目ID(备件、物流)
+     */
+    @ExcelProperty(value = "项目ID(备件、物流)")
+    private Long projectId;
+
+    /**
+     * 预投项目编码(冗余)
+     */
+    @ExcelProperty(value = "预投项目编码(冗余)")
+    private String projectCode;
+
+    /**
+     * 预投项目名称(冗余)
+     */
+    @ExcelProperty(value = "预投项目名称(冗余)")
+    private String projectName;
+
+    /**
+     * 来源预投工时合计(天,带出汇总)
+     */
+    @ExcelProperty(value = "来源预投工时合计(天,带出汇总)")
+    private Long sourceTotalHours;
+
+    /**
+     * 已分配合计(天)
+     */
+    @ExcelProperty(value = "已分配合计(天)")
+    private Long allocatedTotalHours;
+
+    /**
+     * 涉及人数
+     */
+    @ExcelProperty(value = "涉及人数")
+    private Long staffCount;
+
+    /**
+     * 单据状态（0未分配 1部分分配 2已分配）
+     */
+    @ExcelProperty(value = "单据状态", converter = ExcelDictConvert.class)
+    @ExcelDictFormat(dictType = "alloc_status")
+    private String allocStatus;
+
+    /**
+     * 是否已回写月汇总（0否 1是）
+     */
+    @ExcelProperty(value = "是否已回写月汇总", converter = ExcelDictConvert.class)
+    @ExcelDictFormat(dictType = "applied_flag")
+    private String appliedFlag;
+
+    /**
+     * 回写关联的月汇总主表ID
+     */
+    @ExcelProperty(value = "回写关联的月汇总主表ID")
+    private Long summaryId;
+
+    /**
+     * 回写月汇总时间
+     */
+    @ExcelProperty(value = "回写月汇总时间")
+    private Date applyTime;
+
+    /**
+     * 备注
+     */
+    @ExcelProperty(value = "备注")
+    private String remark;
+
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocDetailMapper.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocDetailMapper.java
new file mode 100644
index 00000000..1fa1a088
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocDetailMapper.java
@@ -0,0 +1,37 @@
+package org.dromara.oa.erp.mapper;
+
+import java.util.List;
+import com.github.yulichang.wrapper.MPJLambdaWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Constants;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import org.apache.ibatis.annotations.Param;
+import org.dromara.oa.erp.domain.ErpTimesheetPreAllocDetail;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocDetailVo;
+import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
+
+/**
+ * 预投工时分配明细Mapper接口
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+public interface ErpTimesheetPreAllocDetailMapper extends BaseMapperPlus<ErpTimesheetPreAllocDetail, ErpTimesheetPreAllocDetailVo> {
+
+    /**
+     * 查询预投工时分配明细列表
+     *
+     * @param page         分页
+     * @param queryWrapper 条件
+     * @return 预投工时分配明细集合
+     */
+    public Page<ErpTimesheetPreAllocDetailVo> selectCustomErpTimesheetPreAllocDetailVoList(@Param("page") Page<ErpTimesheetPreAllocDetailVo> page, @Param(Constants.WRAPPER) MPJLambdaWrapper<ErpTimesheetPreAllocDetail> queryWrapper);
+
+    /**
+     * 查询预投工时分配明细列表
+     *
+     * @param queryWrapper 条件
+     * @return 预投工时分配明细集合
+     */
+    public List<ErpTimesheetPreAllocDetailVo> selectCustomErpTimesheetPreAllocDetailVoList(@Param(Constants.WRAPPER) MPJLambdaWrapper<ErpTimesheetPreAllocDetail> queryWrapper);
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocMapper.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocMapper.java
new file mode 100644
index 00000000..c3ed9383
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/mapper/ErpTimesheetPreAllocMapper.java
@@ -0,0 +1,37 @@
+package org.dromara.oa.erp.mapper;
+
+import java.util.List;
+import com.github.yulichang.wrapper.MPJLambdaWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Constants;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import org.apache.ibatis.annotations.Param;
+import org.dromara.oa.erp.domain.ErpTimesheetPreAlloc;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocVo;
+import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
+
+/**
+ * 预投工时分配Mapper接口
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+public interface ErpTimesheetPreAllocMapper extends BaseMapperPlus<ErpTimesheetPreAlloc, ErpTimesheetPreAllocVo> {
+
+    /**
+     * 查询预投工时分配列表
+     *
+     * @param page         分页
+     * @param queryWrapper 条件
+     * @return 预投工时分配集合
+     */
+    public Page<ErpTimesheetPreAllocVo> selectCustomErpTimesheetPreAllocVoList(@Param("page") Page<ErpTimesheetPreAllocVo> page, @Param(Constants.WRAPPER) MPJLambdaWrapper<ErpTimesheetPreAlloc> queryWrapper);
+
+    /**
+     * 查询预投工时分配列表
+     *
+     * @param queryWrapper 条件
+     * @return 预投工时分配集合
+     */
+    public List<ErpTimesheetPreAllocVo> selectCustomErpTimesheetPreAllocVoList(@Param(Constants.WRAPPER) MPJLambdaWrapper<ErpTimesheetPreAlloc> queryWrapper);
+
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocDetailService.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocDetailService.java
new file mode 100644
index 00000000..842783a3
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocDetailService.java
@@ -0,0 +1,69 @@
+package org.dromara.oa.erp.service;
+
+import org.dromara.oa.erp.domain.ErpTimesheetPreAllocDetail;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocDetailVo;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocDetailBo;
+import org.dromara.common.mybatis.core.page.TableDataInfo;
+import org.dromara.common.mybatis.core.page.PageQuery;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * 预投工时分配明细Service接口
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+public interface IErpTimesheetPreAllocDetailService {
+
+    /**
+     * 查询预投工时分配明细
+     *
+     * @param allocDetailId 主键
+     * @return 预投工时分配明细
+     */
+    ErpTimesheetPreAllocDetailVo queryById(Long allocDetailId);
+
+    /**
+     * 分页查询预投工时分配明细列表
+     *
+     * @param bo        查询条件
+     * @param pageQuery 分页参数
+     * @return 预投工时分配明细分页列表
+     */
+    TableDataInfo<ErpTimesheetPreAllocDetailVo> queryPageList(ErpTimesheetPreAllocDetailBo bo, PageQuery pageQuery);
+
+    /**
+     * 查询符合条件的预投工时分配明细列表
+     *
+     * @param bo 查询条件
+     * @return 预投工时分配明细列表
+     */
+    List<ErpTimesheetPreAllocDetailVo> queryList(ErpTimesheetPreAllocDetailBo bo);
+
+    /**
+     * 新增预投工时分配明细
+     *
+     * @param bo 预投工时分配明细
+     * @return 是否新增成功
+     */
+    Boolean insertByBo(ErpTimesheetPreAllocDetailBo bo);
+
+    /**
+     * 修改预投工时分配明细
+     *
+     * @param bo 预投工时分配明细
+     * @return 是否修改成功
+     */
+    Boolean updateByBo(ErpTimesheetPreAllocDetailBo bo);
+
+    /**
+     * 校验并批量删除预投工时分配明细信息
+     *
+     * @param ids     待删除的主键集合
+     * @param isValid 是否进行有效性校验
+     * @return 是否删除成功
+     */
+    Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocService.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocService.java
new file mode 100644
index 00000000..d2fc4c32
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/IErpTimesheetPreAllocService.java
@@ -0,0 +1,69 @@
+package org.dromara.oa.erp.service;
+
+import org.dromara.oa.erp.domain.ErpTimesheetPreAlloc;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocVo;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocBo;
+import org.dromara.common.mybatis.core.page.TableDataInfo;
+import org.dromara.common.mybatis.core.page.PageQuery;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * 预投工时分配Service接口
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+public interface IErpTimesheetPreAllocService {
+
+    /**
+     * 查询预投工时分配
+     *
+     * @param allocId 主键
+     * @return 预投工时分配
+     */
+    ErpTimesheetPreAllocVo queryById(Long allocId);
+
+    /**
+     * 分页查询预投工时分配列表
+     *
+     * @param bo        查询条件
+     * @param pageQuery 分页参数
+     * @return 预投工时分配分页列表
+     */
+    TableDataInfo<ErpTimesheetPreAllocVo> queryPageList(ErpTimesheetPreAllocBo bo, PageQuery pageQuery);
+
+    /**
+     * 查询符合条件的预投工时分配列表
+     *
+     * @param bo 查询条件
+     * @return 预投工时分配列表
+     */
+    List<ErpTimesheetPreAllocVo> queryList(ErpTimesheetPreAllocBo bo);
+
+    /**
+     * 新增预投工时分配
+     *
+     * @param bo 预投工时分配
+     * @return 是否新增成功
+     */
+    Boolean insertByBo(ErpTimesheetPreAllocBo bo);
+
+    /**
+     * 修改预投工时分配
+     *
+     * @param bo 预投工时分配
+     * @return 是否修改成功
+     */
+    Boolean updateByBo(ErpTimesheetPreAllocBo bo);
+
+    /**
+     * 校验并批量删除预投工时分配信息
+     *
+     * @param ids     待删除的主键集合
+     * @param isValid 是否进行有效性校验
+     * @return 是否删除成功
+     */
+    Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocDetailServiceImpl.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocDetailServiceImpl.java
new file mode 100644
index 00000000..5f594c85
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocDetailServiceImpl.java
@@ -0,0 +1,141 @@
+package org.dromara.oa.erp.service.impl;
+
+import org.dromara.common.core.utils.MapstructUtils;
+import org.dromara.common.core.utils.StringUtils;
+    import org.dromara.common.mybatis.core.page.TableDataInfo;
+    import org.dromara.common.mybatis.core.page.PageQuery;
+    import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.github.yulichang.toolkit.JoinWrappers;
+import com.github.yulichang.wrapper.MPJLambdaWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocDetailBo;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocDetailVo;
+import org.dromara.oa.erp.domain.ErpTimesheetPreAllocDetail;
+import org.dromara.oa.erp.mapper.ErpTimesheetPreAllocDetailMapper;
+import org.dromara.oa.erp.service.IErpTimesheetPreAllocDetailService;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Collection;
+
+/**
+ * 预投工时分配明细Service业务层处理
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@RequiredArgsConstructor
+@Service
+public class ErpTimesheetPreAllocDetailServiceImpl implements IErpTimesheetPreAllocDetailService {
+
+    private final ErpTimesheetPreAllocDetailMapper baseMapper;
+
+    /**
+     * 查询预投工时分配明细
+     *
+     * @param allocDetailId 主键
+     * @return 预投工时分配明细
+     */
+    @Override
+    public ErpTimesheetPreAllocDetailVo queryById(Long allocDetailId){
+        return baseMapper.selectVoById(allocDetailId);
+    }
+
+        /**
+         * 分页查询预投工时分配明细列表
+         *
+         * @param bo        查询条件
+         * @param pageQuery 分页参数
+         * @return 预投工时分配明细分页列表
+         */
+        @Override
+        public TableDataInfo<ErpTimesheetPreAllocDetailVo> queryPageList(ErpTimesheetPreAllocDetailBo bo, PageQuery pageQuery) {
+            MPJLambdaWrapper<ErpTimesheetPreAllocDetail> lqw = buildQueryWrapper(bo);
+            Page<ErpTimesheetPreAllocDetailVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
+            return TableDataInfo.build(result);
+        }
+
+    /**
+     * 查询符合条件的预投工时分配明细列表
+     *
+     * @param bo 查询条件
+     * @return 预投工时分配明细列表
+     */
+    @Override
+    public List<ErpTimesheetPreAllocDetailVo> queryList(ErpTimesheetPreAllocDetailBo bo) {
+        MPJLambdaWrapper<ErpTimesheetPreAllocDetail> lqw = buildQueryWrapper(bo);
+        return baseMapper.selectVoList(lqw);
+    }
+
+    private MPJLambdaWrapper<ErpTimesheetPreAllocDetail> buildQueryWrapper(ErpTimesheetPreAllocDetailBo bo) {
+        Map<String, Object> params = bo.getParams();
+        MPJLambdaWrapper<ErpTimesheetPreAllocDetail> lqw = JoinWrappers.lambda(ErpTimesheetPreAllocDetail.class)
+        .selectAll(ErpTimesheetPreAllocDetail.class)
+        .eq(ErpTimesheetPreAllocDetail::getDelFlag, "0")
+                    .eq(bo.getAllocId() != null, ErpTimesheetPreAllocDetail::getAllocId, bo.getAllocId())
+                    .eq(bo.getSortOrder() != null, ErpTimesheetPreAllocDetail::getSortOrder, bo.getSortOrder())
+                    .eq(bo.getOriginalProjectId() != null, ErpTimesheetPreAllocDetail::getOriginalProjectId, bo.getOriginalProjectId())
+                    .eq(StringUtils.isNotBlank(bo.getOriginalProjectCode()), ErpTimesheetPreAllocDetail::getOriginalProjectCode, bo.getOriginalProjectCode())
+                    .like(StringUtils.isNotBlank(bo.getOriginalProjectName()), ErpTimesheetPreAllocDetail::getOriginalProjectName, bo.getOriginalProjectName())
+                    .eq(bo.getTargetProjectId() != null, ErpTimesheetPreAllocDetail::getTargetProjectId, bo.getTargetProjectId())
+                    .eq(StringUtils.isNotBlank(bo.getTargetProjectCode()), ErpTimesheetPreAllocDetail::getTargetProjectCode, bo.getTargetProjectCode())
+                    .like(StringUtils.isNotBlank(bo.getTargetProjectName()), ErpTimesheetPreAllocDetail::getTargetProjectName, bo.getTargetProjectName())
+                    .eq(bo.getAllocHours() != null, ErpTimesheetPreAllocDetail::getAllocHours, bo.getAllocHours())
+;
+        return lqw;
+    }
+
+    /**
+     * 新增预投工时分配明细
+     *
+     * @param bo 预投工时分配明细
+     * @return 是否新增成功
+     */
+    @Override
+    public Boolean insertByBo(ErpTimesheetPreAllocDetailBo bo) {
+        ErpTimesheetPreAllocDetail add = MapstructUtils.convert(bo, ErpTimesheetPreAllocDetail.class);
+        validEntityBeforeSave(add);
+        boolean flag = baseMapper.insert(add) > 0;
+        if (flag) {
+            bo.setAllocDetailId(add.getAllocDetailId());
+        }
+        return flag;
+    }
+
+    /**
+     * 修改预投工时分配明细
+     *
+     * @param bo 预投工时分配明细
+     * @return 是否修改成功
+     */
+    @Override
+    public Boolean updateByBo(ErpTimesheetPreAllocDetailBo bo) {
+        ErpTimesheetPreAllocDetail update = MapstructUtils.convert(bo, ErpTimesheetPreAllocDetail.class);
+        validEntityBeforeSave(update);
+        return baseMapper.updateById(update) > 0;
+    }
+
+    /**
+     * 保存前的数据校验
+     */
+    private void validEntityBeforeSave(ErpTimesheetPreAllocDetail entity){
+        //TODO 做一些数据校验,如唯一约束
+    }
+
+    /**
+     * 校验并批量删除预投工时分配明细信息
+     *
+     * @param ids     待删除的主键集合
+     * @param isValid 是否进行有效性校验
+     * @return 是否删除成功
+     */
+    @Override
+    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
+        if(isValid){
+            //TODO 做一些业务上的校验,判断是否需要校验
+        }
+        return baseMapper.deleteByIds(ids) > 0;
+    }
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocServiceImpl.java b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocServiceImpl.java
new file mode 100644
index 00000000..674a404a
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpTimesheetPreAllocServiceImpl.java
@@ -0,0 +1,145 @@
+package org.dromara.oa.erp.service.impl;
+
+import org.dromara.common.core.utils.MapstructUtils;
+import org.dromara.common.core.utils.StringUtils;
+    import org.dromara.common.mybatis.core.page.TableDataInfo;
+    import org.dromara.common.mybatis.core.page.PageQuery;
+    import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.github.yulichang.toolkit.JoinWrappers;
+import com.github.yulichang.wrapper.MPJLambdaWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.dromara.oa.erp.domain.bo.ErpTimesheetPreAllocBo;
+import org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocVo;
+import org.dromara.oa.erp.domain.ErpTimesheetPreAlloc;
+import org.dromara.oa.erp.mapper.ErpTimesheetPreAllocMapper;
+import org.dromara.oa.erp.service.IErpTimesheetPreAllocService;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Collection;
+
+/**
+ * 预投工时分配Service业务层处理
+ *
+ * @author Yangk
+ * @date 2026-05-20
+ */
+@RequiredArgsConstructor
+@Service
+public class ErpTimesheetPreAllocServiceImpl implements IErpTimesheetPreAllocService {
+
+    private final ErpTimesheetPreAllocMapper baseMapper;
+
+    /**
+     * 查询预投工时分配
+     *
+     * @param allocId 主键
+     * @return 预投工时分配
+     */
+    @Override
+    public ErpTimesheetPreAllocVo queryById(Long allocId){
+        return baseMapper.selectVoById(allocId);
+    }
+
+        /**
+         * 分页查询预投工时分配列表
+         *
+         * @param bo        查询条件
+         * @param pageQuery 分页参数
+         * @return 预投工时分配分页列表
+         */
+        @Override
+        public TableDataInfo<ErpTimesheetPreAllocVo> queryPageList(ErpTimesheetPreAllocBo bo, PageQuery pageQuery) {
+            MPJLambdaWrapper<ErpTimesheetPreAlloc> lqw = buildQueryWrapper(bo);
+            Page<ErpTimesheetPreAllocVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
+            return TableDataInfo.build(result);
+        }
+
+    /**
+     * 查询符合条件的预投工时分配列表
+     *
+     * @param bo 查询条件
+     * @return 预投工时分配列表
+     */
+    @Override
+    public List<ErpTimesheetPreAllocVo> queryList(ErpTimesheetPreAllocBo bo) {
+        MPJLambdaWrapper<ErpTimesheetPreAlloc> lqw = buildQueryWrapper(bo);
+        return baseMapper.selectVoList(lqw);
+    }
+
+    private MPJLambdaWrapper<ErpTimesheetPreAlloc> buildQueryWrapper(ErpTimesheetPreAllocBo bo) {
+        Map<String, Object> params = bo.getParams();
+        MPJLambdaWrapper<ErpTimesheetPreAlloc> lqw = JoinWrappers.lambda(ErpTimesheetPreAlloc.class)
+        .selectAll(ErpTimesheetPreAlloc.class)
+        .eq(ErpTimesheetPreAlloc::getDelFlag, "0")
+                    .eq(StringUtils.isNotBlank(bo.getAllocCode()), ErpTimesheetPreAlloc::getAllocCode, bo.getAllocCode())
+                    .eq(StringUtils.isNotBlank(bo.getMonthCode()), ErpTimesheetPreAlloc::getMonthCode, bo.getMonthCode())
+                    .eq(bo.getStandardMonthId() != null, ErpTimesheetPreAlloc::getStandardMonthId, bo.getStandardMonthId())
+                    .eq(bo.getProjectId() != null, ErpTimesheetPreAlloc::getProjectId, bo.getProjectId())
+                    .eq(StringUtils.isNotBlank(bo.getProjectCode()), ErpTimesheetPreAlloc::getProjectCode, bo.getProjectCode())
+                    .like(StringUtils.isNotBlank(bo.getProjectName()), ErpTimesheetPreAlloc::getProjectName, bo.getProjectName())
+                    .eq(bo.getSourceTotalHours() != null, ErpTimesheetPreAlloc::getSourceTotalHours, bo.getSourceTotalHours())
+                    .eq(bo.getAllocatedTotalHours() != null, ErpTimesheetPreAlloc::getAllocatedTotalHours, bo.getAllocatedTotalHours())
+                    .eq(bo.getStaffCount() != null, ErpTimesheetPreAlloc::getStaffCount, bo.getStaffCount())
+                    .eq(StringUtils.isNotBlank(bo.getAllocStatus()), ErpTimesheetPreAlloc::getAllocStatus, bo.getAllocStatus())
+                    .eq(StringUtils.isNotBlank(bo.getAppliedFlag()), ErpTimesheetPreAlloc::getAppliedFlag, bo.getAppliedFlag())
+                    .eq(bo.getSummaryId() != null, ErpTimesheetPreAlloc::getSummaryId, bo.getSummaryId())
+                    .eq(bo.getApplyTime() != null, ErpTimesheetPreAlloc::getApplyTime, bo.getApplyTime())
+;
+        return lqw;
+    }
+
+    /**
+     * 新增预投工时分配
+     *
+     * @param bo 预投工时分配
+     * @return 是否新增成功
+     */
+    @Override
+    public Boolean insertByBo(ErpTimesheetPreAllocBo bo) {
+        ErpTimesheetPreAlloc add = MapstructUtils.convert(bo, ErpTimesheetPreAlloc.class);
+        validEntityBeforeSave(add);
+        boolean flag = baseMapper.insert(add) > 0;
+        if (flag) {
+            bo.setAllocId(add.getAllocId());
+        }
+        return flag;
+    }
+
+    /**
+     * 修改预投工时分配
+     *
+     * @param bo 预投工时分配
+     * @return 是否修改成功
+     */
+    @Override
+    public Boolean updateByBo(ErpTimesheetPreAllocBo bo) {
+        ErpTimesheetPreAlloc update = MapstructUtils.convert(bo, ErpTimesheetPreAlloc.class);
+        validEntityBeforeSave(update);
+        return baseMapper.updateById(update) > 0;
+    }
+
+    /**
+     * 保存前的数据校验
+     */
+    private void validEntityBeforeSave(ErpTimesheetPreAlloc entity){
+        //TODO 做一些数据校验,如唯一约束
+    }
+
+    /**
+     * 校验并批量删除预投工时分配信息
+     *
+     * @param ids     待删除的主键集合
+     * @param isValid 是否进行有效性校验
+     * @return 是否删除成功
+     */
+    @Override
+    public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
+        if(isValid){
+            //TODO 做一些业务上的校验,判断是否需要校验
+        }
+        return baseMapper.deleteByIds(ids) > 0;
+    }
+}
diff --git a/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocDetailMapper.xml b/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocDetailMapper.xml
new file mode 100644
index 00000000..0dde736c
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocDetailMapper.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="org.dromara.oa.erp.mapper.ErpTimesheetPreAllocDetailMapper">
+    <resultMap type="org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocDetailVo" id="ErpTimesheetPreAllocDetailResult">
+    </resultMap>
+
+    <select id="selectCustomErpTimesheetPreAllocDetailVoList" resultMap="ErpTimesheetPreAllocDetailResult">
+        select alloc_detail_id, tenant_id, alloc_id, sort_order, original_project_id, original_project_code, original_project_name, target_project_id, target_project_code, target_project_name, alloc_hours, remark, del_flag, create_dept, create_by, create_time, update_by, update_time from erp_timesheet_pre_alloc_detail t
+            ${ew.getCustomSqlSegment}
+    </select>
+
+</mapper>
diff --git a/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocMapper.xml b/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocMapper.xml
new file mode 100644
index 00000000..fbd8883b
--- /dev/null
+++ b/ruoyi-modules/ruoyi-oa/src/main/resources/mapper/oa/erp/ErpTimesheetPreAllocMapper.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="org.dromara.oa.erp.mapper.ErpTimesheetPreAllocMapper">
+    <resultMap type="org.dromara.oa.erp.domain.vo.ErpTimesheetPreAllocVo" id="ErpTimesheetPreAllocResult">
+    </resultMap>
+
+    <select id="selectCustomErpTimesheetPreAllocVoList" resultMap="ErpTimesheetPreAllocResult">
+        select alloc_id, tenant_id, alloc_code, month_code, standard_month_id, project_id, project_code, project_name, source_total_hours, allocated_total_hours, staff_count, alloc_status, applied_flag, summary_id, apply_time, remark, del_flag, create_dept, create_by, create_time, update_by, update_time from erp_timesheet_pre_alloc t
+            ${ew.getCustomSqlSegment}
+    </select>
+
+</mapper>