diff --git a/README.md b/README.md
index 644d9b1..cddf1cc 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,7 @@
 * [Docker —— 从入门到实践](https://github.com/yeasy/docker_practice)
 * [FreeRADIUS新手入门](http://freeradius.akagi201.org)
 * [Mac 开发配置手册](http://aaaaaashu.gitbooks.io/mac-dev-setup/content/)
+* [FreeBSD 使用手册](https://www.freebsd.org/doc/zh_CN/books/handbook/index.html)
 
 #### 智能系统
 * [一步步搭建物联网系统](https://github.com/gmszone/designiot)