diff --git a/business/views.py b/business/views.py
index c6dda6e..5224803 100644
--- a/business/views.py
+++ b/business/views.py
@@ -762,7 +762,8 @@ class caseManagement(APIView):
 
         personincharge = request.data.get('personincharge')
 
-        case = Case.objects.filter(user_id=id).first()
+        # 只查询未删除的案件，避免更新已删除的案件
+        case = Case.objects.filter(user_id=id, is_deleted=False).first()
         if not case:
             case_id = Case.objects.create(
                 user_id=id,