diff --git a/README_CN.md b/README_CN.md
index d8517e6d6d6238ad8fe92fe2c9db81fb2a49ba61..a4d282b659fae81e36caaf5cb2a3122c4e1edf4e 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -270,12 +270,13 @@ python3 pipeline_rpc_client.py
 ```
 
 <h3 align="center">关闭Serving/Pipeline服务</h3>
+
 **方式一** ：Ctrl+C关停服务
 
 **方式二** ：在启动Serving/Pipeline服务路径或者环境变量SERVING_HOME路径下(该路径下存在文件ProcessInfo.json)
 
 ```
-python3 -m paddle_serving_server.serve stop/kill [--port 9494]
+python3 -m paddle_serving_server.serve stop/kill
 ```
 
 <h2 align="center">文档</h2>