diff --git a/doc/fluid/api/layers.rst b/doc/fluid/api/layers.rst
index 7d437ee27596f397f807bb80fc107dc29eaae374..7304af4ab620ca4bc501296b4afc185a62296061 100644
--- a/doc/fluid/api/layers.rst
+++ b/doc/fluid/api/layers.rst
@@ -155,8 +155,8 @@ fluid.layers
     layers/image_resize.rst
     layers/image_resize_short.rst
     layers/increment.rst
-    layers/index_select.rst
     layers/index_sample.rst
+    layers/index_select.rst
     layers/inplace_abn.rst
     layers/instance_norm.rst
     layers/interpolate.rst
diff --git a/doc/fluid/api/layers/index_sample.rst b/doc/fluid/api/layers/index_sample.rst
new file mode 100644
index 0000000000000000000000000000000000000000..adb9f1a84bfd57e92caa5c602b0925550197eddf
--- /dev/null
+++ b/doc/fluid/api/layers/index_sample.rst
@@ -0,0 +1,11 @@
+..  THIS FILE IS GENERATED BY `gen_doc.{py|sh}`
+    !DO NOT EDIT THIS FILE MANUALLY!
+
+.. _api_fluid_layers_index_sample:
+
+index_sample
+------------
+
+..  autofunction:: paddle.fluid.layers.index_sample
+    :noindex:
+