diff --git a/README.md b/README.md
index 9a95485..120d570 100755
--- a/README.md
+++ b/README.md
@@ -127,6 +127,9 @@ kcptun is a tcp connection speed-up program,it speeds-up tcp connection by using
 ### speed-up tcp connection via raw traffic by using udp2raw+finalspeed
 finalspeed is a tcp connection speed-up program similiar to kcptun,it speeds-up tcp connection by using kcp protocol on-top of udp or tcp.but its tcp mode doesnt support openvz,you can bypass this problem if you use udp2raw+finalspeed together,and icmp mode also becomes avaliable.
 
+# how to build
+read [build_guide](/doc/build_guide.md)
+
 # Related work
 ### kcptun-raw
 this project was inspired by kcptun-raw,which modified kcptun to support tcp mode.