diff --git a/src/views/dms/dmsBillsMaintInstance/index.vue b/src/views/dms/dmsBillsMaintInstance/index.vue
index c8c5173..5d2a3bb 100644
--- a/src/views/dms/dmsBillsMaintInstance/index.vue
+++ b/src/views/dms/dmsBillsMaintInstance/index.vue
@@ -296,7 +296,7 @@ const columns = ref<FieldOption[]>([
         { key: 3, label: `流程定义`, visible: false },
         { key: 4, label: `保养单号`, visible: true },
         { key: 5, label: `保养组别`, visible: true },
-        { key: 6, label: `保养负责人`, visible: true },
+        { key: 6, label: `保养负责人`, visible: false },
         { key: 7, label: `保养级别`, visible: true },
         { key: 8, label: `计划保养时间`, visible: true },
         { key: 9, label: `实际开始时间`, visible: true },
diff --git a/src/views/dms/prodBaseMachineInfo/index.vue b/src/views/dms/prodBaseMachineInfo/index.vue
index aa2c0b5..f065ac7 100644
--- a/src/views/dms/prodBaseMachineInfo/index.vue
+++ b/src/views/dms/prodBaseMachineInfo/index.vue
@@ -1444,7 +1444,7 @@ const viewDetails = async (machine) => {
   // 加载详情数据
   await Promise.all([
     loadTechnicalParams(machine.machineId),
-    loadMaintenanceStats(machine.machineId),
+    // loadMaintenanceStats(machine.machineId),
     loadAlarmList(machine.machineId)
   ]);
 };
@@ -1534,7 +1534,7 @@ const loadLifecycleTypes = async () => {
       purchaseCount,
       installCount,
       debuggingCount,
-      maintCount,  // 使用新的后端接口
+      maintListRes,  // 使用列表接口计算维保数量
       faultCount,
       inspectCount,  // 使用新的后端接口
       alarmCount
@@ -1542,7 +1542,7 @@ const loadLifecycleTypes = async () => {
       getPurchaseCount({ machineId }).catch(() => ({ data: 0 })),
       getInstallCount({ machineId }).catch(() => ({ data: 0 })),
       getDebuggingCount({ machineId }).catch(() => ({ data: 0 })),
-      countMaintInstancesByMachineId(machineId).catch(() => ({ data: 0 })),
+      getMaintInstancesByMachineId(machineId).catch(() => ({ data: [], rows: [] })),
       getFaultInstanceCount({ machineId }).catch(() => ({ data: 0 })),
       countInspectInstancesByMachineId(machineId).catch(() => ({ data: 0 })),
       getAlarmInfoCount({ deviceId: machineId }).catch(() => ({ data: 0 }))
@@ -1558,7 +1558,8 @@ const loadLifecycleTypes = async () => {
           type.count = (installCount.data || 0) + (debuggingCount.data || 0);
           break;
         case 'maintenance':
-          type.count = maintCount.data || 0;
+          // 兼容不同返回结构，使用列表长度作为维保数量，避免后端统计口径差异
+          type.count = ((maintListRes?.data ?? maintListRes?.rows) || []).length || 0;
           break;
         case 'fault':
           type.count = faultCount.data || 0;