diff --git a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/controller/SysUserController.java b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/controller/SysUserController.java
index 0bc92506..a01fd865 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/controller/SysUserController.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/controller/SysUserController.java
@@ -149,7 +149,7 @@ public class SysUserController extends BaseController {
     @Log(title = "用户管理", businessType = BusinessType.INSERT)
     @PostMapping
     public R<Void> add(@Validated @RequestBody SysUser user) {
-        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(user.getUserName()))) {
+        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(user))) {
             return R.fail("新增用户'" + user.getUserName() + "'失败，登录账号已存在");
         } else if (StringUtils.isNotEmpty(user.getPhonenumber())
             && UserConstants.NOT_UNIQUE.equals(userService.checkPhoneUnique(user))) {
@@ -171,7 +171,7 @@ public class SysUserController extends BaseController {
     public R<Void> edit(@Validated @RequestBody SysUser user) {
         userService.checkUserAllowed(user);
         userService.checkUserDataScope(user.getUserId());
-        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(user.getUserName()))) {
+        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(user))) {
             return R.fail("修改用户'" + user.getUserName() + "'失败，登录账号已存在");
         } else if (StringUtils.isNotEmpty(user.getPhonenumber())
             && UserConstants.NOT_UNIQUE.equals(userService.checkPhoneUnique(user))) {
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/dubbo/RemoteUserServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/dubbo/RemoteUserServiceImpl.java
index 05f395d9..74f7f912 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/dubbo/RemoteUserServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/dubbo/RemoteUserServiceImpl.java
@@ -94,7 +94,7 @@ public class RemoteUserServiceImpl implements RemoteUserService {
         if (!("true".equals(configService.selectConfigByKey("sys.account.registerUser")))) {
             throw new ServiceException("当前系统没有开启注册功能");
         }
-        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(username))) {
+        if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(sysUser))) {
             throw new UserException("user.register.save.error", username);
         }
         return userService.registerUser(sysUser);
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserService.java b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserService.java
index bd3223cc..1283af08 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserService.java
@@ -81,10 +81,10 @@ public interface ISysUserService {
     /**
      * 校验用户名称是否唯一
      *
-     * @param userName 用户名称
+     * @param user 用户信息
      * @return 结果
      */
-    String checkUserNameUnique(String userName);
+    String checkUserNameUnique(SysUser user);
 
     /**
      * 校验手机号码是否唯一
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java
index 44c57be7..4b6ff7fb 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java
@@ -193,12 +193,14 @@ public class SysUserServiceImpl implements ISysUserService {
     /**
      * 校验用户名称是否唯一
      *
-     * @param userName 用户名称
+     * @param user 用户信息
      * @return 结果
      */
     @Override
-    public String checkUserNameUnique(String userName) {
-        boolean exist = baseMapper.exists(new LambdaQueryWrapper<SysUser>().eq(SysUser::getUserName, userName));
+    public String checkUserNameUnique(SysUser user) {
+        boolean exist = baseMapper.exists(new LambdaQueryWrapper<SysUser>()
+            .eq(SysUser::getUserName, user.getUserName())
+            .ne(ObjectUtil.isNotNull(user.getUserId()), SysUser::getUserId, user.getUserId()));
         if (exist) {
             return UserConstants.NOT_UNIQUE;
         }