diff --git a/README.md b/README.md
index aa7cff6378b06ca386df1ad07c3d0b875899782c..8575194a3b5a07165d3091a8e647e0182d0c11f9 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ pip install paddle-serving-server # CPU
 pip install paddle-serving-server-gpu # GPU
 ```
 
+You may need to use a domestic mirror source (in China, you can use the Tsinghua mirror source, add "-i https://pypi.tuna.tsinghua.edu.cn/simple" to pip command) to speed up the download. 
 <h2 align="center">Quick Start Example</h2>
 
 ### Boston House Price Prediction model
diff --git a/README_CN.md b/README_CN.md
index 85a4056a0c393e3849bf5f93bf7de8973d8bc19a..8a19c5cbd31f280148ae39f8414b4fc4286d1574 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -43,6 +43,8 @@ pip install paddle-serving-server # CPU
 pip install paddle-serving-server-gpu # GPU
 ```
 
+您可能需要使用国内镜像源（例如清华源, 在pip命令中添加"-i https://pypi.tuna.tsinghua.edu.cn/simple"）来加速下载。
+
 <h2 align="center">快速启动示例</h2>
 
 <h3 align="center">波士顿房价预测</h3>