diff --git a/README.md b/README.md
index 3a6e138..4f14c33 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # csharp-sdk
 LeanCloud C# SDK
+
+[API 文档](https://leancloud.github.io/csharp-sdk/html/index.html)