diff --git a/docs/api/_sidebar.md b/docs/api/_sidebar.md
index 30c542face29d5404ae448b6d1267068c473b79d..5c1c21ba5f8641dae30880edc92d40fe9cec4d9d 100644
--- a/docs/api/_sidebar.md
+++ b/docs/api/_sidebar.md
@@ -1,3 +1,4 @@
+* [API概述](README.md)
 * 基础
   * [日志打印](api/log.md)
   * [定时器](api/timer.md)