diff --git a/service/face_service.py b/service/face_service.py
index a29f846..5bfd80b 100644
--- a/service/face_service.py
+++ b/service/face_service.py
@@ -79,7 +79,7 @@ async def create_face(
             raise HTTPException(status_code=500, detail="创建成功但无法获取记录")
 
         return APIResponse(
-            code=201,
+            code=200,
             message=f"人脸记录创建成功（ID: {created_face['id']}）",
             data=FaceResponse(**created_face)
         )
diff --git a/service/model_service.py b/service/model_service.py
index 7dbb8fb..80c9edf 100644
--- a/service/model_service.py
+++ b/service/model_service.py
@@ -261,7 +261,7 @@ async def upload_model(
                 )
 
         return APIResponse(
-            code=201,
+            code=200,
             message=f"模型上传成功！ID：{new_model['id']}",
             data=ModelResponse(** new_model)
         )
diff --git a/service/sensitive_service.py b/service/sensitive_service.py
index 1ad65f9..955bc62 100644
--- a/service/sensitive_service.py
+++ b/service/sensitive_service.py
@@ -59,7 +59,7 @@ async def create_sensitive(
         created_sensitive = cursor.fetchone()
 
         return APIResponse(
-            code=201,  # 201 表示资源创建成功
+            code=200,  # 200 表示资源创建成功
             message="敏感信息记录创建成功",
             data=SensitiveResponse(**created_sensitive)
         )
diff --git a/service/user_service.py b/service/user_service.py
index 6a87e48..c30d5b8 100644
--- a/service/user_service.py
+++ b/service/user_service.py
@@ -64,7 +64,7 @@ async def user_register(request: UserRegisterRequest):
 
         # 4. 返回注册成功响应
         return APIResponse(
-            code=201,  # 201 表示资源创建成功
+            code=200,  # 200 表示资源创建成功
             message=f"用户 '{request.username}' 注册成功",
             data=None
         )