diff --git a/README.md b/README.md
index 857b79d..ae0341c 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,8 @@ Analyze and scan traffic by using [active crawler mode](https://github.com/Qianl
 
 You should check whether the above programs exist on your machine before using them
 
+> If you do not want to install nmap and masscan, you can use-nps to specify that port scanning will not be performed and turn off checking
+
 ## Active Mode
 
 Three built-in crawler modes are available:
diff --git a/README_CN.md b/README_CN.md
index c5fdea9..ef78ee1 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -38,6 +38,8 @@
 
 检查机器上是否存在以上程序
 
+> 如果不想安装 nmap 和 masscan，可以使用 —nps 指定不进行端口扫描，关闭检查
+
 ## 主动模式
 
 内置三种爬虫模式