diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -516,5 +516,6 @@ PushDeer主要面向以下三类用户
 
 # 相关项目
 
+- [C# SDK](https://gitee.com/mrbread/pushdeer_csharp_sdk) by [MrBread](https://gitee.com/mrbread)
 - [API的Go实现](https://github.com/iepngs/pushdeer-backend-go) by [iepngs](https://github.com/iepngs)