diff --git a/README.md b/README.md
index fe80a285a..fabd81f4a 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,10 @@ if ($http_user_agent ~* "googlebot|Mediapartners-Google|bingbot|google-structure
 #### 依赖安装、运行
 
 ```bash
+npm install pm2 -g //装过就不用再执行此条
+
 // 依赖
 npm install
-npm install pm2 -g
 
 // 打包
 npm run build