diff --git a/User/views.py b/User/views.py
index 8fd6546..fa077cd 100644
--- a/User/views.py
+++ b/User/views.py
@@ -2281,7 +2281,7 @@ class approvalProcessing(APIView):
 
         if type == "结案申请":
             try:
-                from business.models import Schedule
+                from business.models import Schedule, Case
                 schedule = Schedule.objects.get(id=approval.user_id, is_deleted=False)
             except Schedule.DoesNotExist:
                 return Response({'status': 'error', 'message': '结案申请记录不存在或已被删除', 'code': 1}, status=status.HTTP_404_NOT_FOUND)
@@ -2302,6 +2302,31 @@ class approvalProcessing(APIView):
             if error:
                 return Response({'status': 'error', 'message': error, 'code': 1}, status=status.HTTP_400_BAD_REQUEST)
 
+            # 审批通过后，更新 Case.Closingapplication 字段
+            # 刷新 schedule 和 approval 以获取最新状态
+            schedule.refresh_from_db()
+            approval.refresh_from_db()
+            if schedule.state == "已完成" or approval.state == "已通过":
+                try:
+                    import json
+                    import logging
+                    logger = logging.getLogger(__name__)
+                    # 从 schedule.remark 中获取 case_id 和 closing_application_files
+                    remark_data = json.loads(schedule.remark) if schedule.remark else {}
+                    case_id = remark_data.get('case_id')
+                    closing_files = remark_data.get('closing_application_files', [])
+                    
+                    if case_id and closing_files:
+                        case = Case.objects.filter(id=case_id, is_deleted=False).first()
+                        if case:
+                            case.Closingapplication = json.dumps(closing_files, ensure_ascii=False)
+                            case.save(update_fields=['Closingapplication'])
+                            logger.info(f"结案申请审批通过，已更新 Case(id={case_id}) 的 Closingapplication 字段")
+                except Exception as e:
+                    import logging
+                    logger = logging.getLogger(__name__)
+                    logger.error(f"结案申请审批通过后更新 Case.Closingapplication 失败: {str(e)}")
+
             return Response({'message': '处理成功', 'code': 0}, status=status.HTTP_200_OK)
 
         return Response({'message': '处理成功', 'code': 0}, status=status.HTTP_200_OK)
diff --git a/business/views.py b/business/views.py
index 1ec060c..e043012 100644
--- a/business/views.py
+++ b/business/views.py
@@ -1598,16 +1598,18 @@ class CaseAttachmentUpdate(APIView):
             case.Contractreturn = Contractreturn
             update_fields = ['Contractreturn']
         elif upload_type == "Closingapplication":
-            case.Closingapplication = json.dumps(file_urls, ensure_ascii=False)
-            update_fields = ['Closingapplication']
+            # 结案申请需要审批通过后才更新 Case.Closingapplication 字段
+            # 这里不直接更新，文件URL保存在 Schedule.remark 中，审批通过后再更新到 Case
+            pass
         elif upload_type == "AgencyContract":
             case.AgencyContract = json.dumps(file_urls, ensure_ascii=False)
             update_fields = ['AgencyContract']
 
-        case.save(update_fields=update_fields)
+        if update_fields:
+            case.save(update_fields=update_fields)
 
         # 结案申请：加入审批流程（独立于“案件管理”审批，避免覆盖 Case.approvers_order / Case.state）
-        if upload_type == "Closingapplication" and case.state == "结案":
+        if upload_type == "Closingapplication":  # 审批通过后才更新 Case.Closingapplication 字段
             try:
                 token = request.META.get('token')
                 submitter = User.objects.get(token=token, is_deleted=False)