diff --git a/src/api/inspection/inspectionRequestHeader.js b/src/api/inspection/inspectionRequestHeader.js
index cc0611d..f77c626 100644
--- a/src/api/inspection/inspectionRequestHeader.js
+++ b/src/api/inspection/inspectionRequestHeader.js
@@ -11,6 +11,9 @@ export const getInspectionResultList = (data) => createAPI(`/inspection/getInspe
 // 查询可申请验货PO
 export const queryPoPage = (data) => createAPI(`/inspection/queryPoPage`, 'post', data)
 
+// 查询可申请验货PO（排除已存在的PO明细）
+export const queryPoPageExclude = (data) => createAPI(`/inspection/queryPoPageExclude`, 'post', data)
+
 // 查询可申请验货供应商（按PO明细聚合）
 export const queryPoSupplierPage = (data) => createAPI(`/inspection/queryPoSupplierPage`, 'post', data)
 
diff --git a/src/views/modules/inspection/inspectionRequestList.vue b/src/views/modules/inspection/inspectionRequestList.vue
index 0efa0a7..b45e72d 100644
--- a/src/views/modules/inspection/inspectionRequestList.vue
+++ b/src/views/modules/inspection/inspectionRequestList.vue
@@ -1111,7 +1111,7 @@
 </template>
 
 <script>
-import { searchInspectionRequestHeaderList, queryPoPage, queryPoSupplierPage, queryPoSupplierOrderPage, saveInspectionRequest, deleteInspectionRequest, confirmInspectionRequest, applyChangeInspectionRequest, getInspectionRequestDetailSubList, updateInspectionRequest, downloadTemplate, previewUpload, batchSave, addInspectionDetails, editInspectionDetails, deleteInspectionDetails } from '@/api/inspection/inspectionRequestHeader.js'
+import { searchInspectionRequestHeaderList, queryPoPage, queryPoPageExclude, queryPoSupplierPage, queryPoSupplierOrderPage, saveInspectionRequest, deleteInspectionRequest, confirmInspectionRequest, applyChangeInspectionRequest, getInspectionRequestDetailSubList, updateInspectionRequest, downloadTemplate, previewUpload, batchSave, addInspectionDetails, editInspectionDetails, deleteInspectionDetails } from '@/api/inspection/inspectionRequestHeader.js'
 import { searchSrmSupplierAddressList, createSrmSupplierAddress, updateSrmSupplierAddress, searchSrmSupplierList } from '@/api/srm/srmSupplier.js'
 import { getPermissionValue } from '@/api/sys/specialSecurity.js'
 import Chooselist from '@/views/modules/common/Chooselist_eam'
@@ -2326,8 +2326,28 @@ export default {
         limit: this.addPoSelectPageSize
       }
 
+      // 如果是编辑模式且已有PO明细，构建排除列表
+      if (this.isEditDialogMode && this.editPoDetailList && this.editPoDetailList.length > 0) {
+        const excludePoItems = []
+        this.editPoDetailList.forEach(item => {
+          // 优先使用 poNo 和 poItemNo（对应后端 order_no 和 item_no）
+          const orderNo = item.poNo || item.orderNo || item.order_no || item.orderRef1 || ''
+          const itemNo = item.poItemNo || item.po_item_no || item.itemNo || item.item_no || item.orderRef2 || ''
+          if (orderNo && itemNo) {
+            excludePoItems.push(`${orderNo}:${itemNo}`)
+          }
+        })
+        if (excludePoItems.length > 0) {
+          params.excludePoItems = excludePoItems
+        }
+      }
+
       this.addPoSelectLoading = true
-      queryPoPage(params).then(({ data }) => {
+      
+      // 根据是否有排除列表选择不同的API
+      const apiCall = params.excludePoItems ? queryPoPageExclude(params) : queryPoPage(params)
+      
+      apiCall.then(({ data }) => {
         if (data && data.code === 0) {
           const pageData = data.page || {}
           let list = pageData.list || []