diff --git a/doc/fluid/index_cn.rst b/doc/fluid/index_cn.rst
index 0baa349574e3cdcbe669f027bbbf1af591070b8d..affd1099519b814c2c8aeaeecad7a222943ab410 100644
--- a/doc/fluid/index_cn.rst
+++ b/doc/fluid/index_cn.rst
@@ -14,3 +14,4 @@
     beginners_guide/index.rst
     user_guides/index.rst
     advanced_usage/index.rst
+    api/index_cn.rst