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diff --git a/site/docs/doc/contact-us.md b/site/docs/doc/contact-us.md
index 47f9e67b6..72198217a 100644
--- a/site/docs/doc/contact-us.md
+++ b/site/docs/doc/contact-us.md
@@ -16,17 +16,20 @@
 
 ### 钉钉群
 
-- Arthas 开源交流钉钉群： 21965291 ，搜索群号即可加入。
+- Arthas 开源交流钉钉群： 21965291 ，搜索群号即可加入。（如果满了无法加入，请加3群）
 
 ![](/images/dingding_qr.jpg)
 
-- Arthas 开源交流钉钉群 2： 30707824 ，搜索群号即可加入。
+- Arthas 开源交流钉钉群 2： 30707824 ，搜索群号即可加入。（如果满了无法加入，请加3群）
 
 ![](/images/dingding2_qr.jpg)
 
+- Arthas 开源交流钉钉群 3： 17605006847 ，搜索群号即可加入。
+
+![](/images/dingding3_qr.jpg)
 ### QQ 群
 
-Arthas 开源交流 QQ 群： 916328269
+Arthas 开源交流 QQ 群： 916328269 （如果满了无法加入，请加2群）
 
 ![](/images/qqgroup_qr.jpg)
 
diff --git a/site/docs/en/doc/contact-us.md b/site/docs/en/doc/contact-us.md
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--- a/site/docs/en/doc/contact-us.md
+++ b/site/docs/en/doc/contact-us.md
@@ -14,6 +14,10 @@ Questions about how to use Arthas and opinions can be directly raised in issues
 
 ![](/images/dingding2_qr.jpg)
 
+- Arthas open source discussion Group 3： 17605006847 , You can join by searching for group number。
+
+![](/images/dingding3_qr.jpg)
+
 ### Instructions for Installing DingTalk
 
 DingTalk can be downloaded from: [https://www.dingtalk.com/en](https://page.dingtalk.com/wow/dingtalk/act/en-download)