diff --git a/doc/api/v2/fluid/data_feeder.rst b/doc/api/fluid/data_feeder.rst
similarity index 100%
rename from doc/api/v2/fluid/data_feeder.rst
rename to doc/api/fluid/data_feeder.rst
diff --git a/doc/api/v2/fluid/evaluator.rst b/doc/api/fluid/evaluator.rst
similarity index 100%
rename from doc/api/v2/fluid/evaluator.rst
rename to doc/api/fluid/evaluator.rst
diff --git a/doc/api/v2/fluid/executor.rst b/doc/api/fluid/executor.rst
similarity index 100%
rename from doc/api/v2/fluid/executor.rst
rename to doc/api/fluid/executor.rst
diff --git a/doc/api/v2/fluid/gen_doc.py b/doc/api/fluid/gen_doc.py
similarity index 100%
rename from doc/api/v2/fluid/gen_doc.py
rename to doc/api/fluid/gen_doc.py
diff --git a/doc/api/v2/fluid/gen_doc.sh b/doc/api/fluid/gen_doc.sh
similarity index 100%
rename from doc/api/v2/fluid/gen_doc.sh
rename to doc/api/fluid/gen_doc.sh
diff --git a/doc/api/fluid/index.rst b/doc/api/fluid/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..b0710d8b19956eb235890fdb2a2d764084416aa5
--- /dev/null
+++ b/doc/api/fluid/index.rst
@@ -0,0 +1,18 @@
+======================
+Fluid
+======================
+
+..  toctree::
+    :maxdepth: 1
+
+    layers.rst
+    data_feeder.rst
+    executor.rst
+    initializer.rst
+    evaluator.rst
+    nets.rst
+    optimizer.rst
+    param_attr.rst
+    profiler.rst
+    regularizer.rst
+    io.rst
diff --git a/doc/api/v2/fluid/initializer.rst b/doc/api/fluid/initializer.rst
similarity index 100%
rename from doc/api/v2/fluid/initializer.rst
rename to doc/api/fluid/initializer.rst
diff --git a/doc/api/v2/fluid/io.rst b/doc/api/fluid/io.rst
similarity index 100%
rename from doc/api/v2/fluid/io.rst
rename to doc/api/fluid/io.rst
diff --git a/doc/api/v2/fluid/layers.rst b/doc/api/fluid/layers.rst
similarity index 100%
rename from doc/api/v2/fluid/layers.rst
rename to doc/api/fluid/layers.rst
diff --git a/doc/api/v2/fluid/nets.rst b/doc/api/fluid/nets.rst
similarity index 100%
rename from doc/api/v2/fluid/nets.rst
rename to doc/api/fluid/nets.rst
diff --git a/doc/api/v2/fluid/optimizer.rst b/doc/api/fluid/optimizer.rst
similarity index 100%
rename from doc/api/v2/fluid/optimizer.rst
rename to doc/api/fluid/optimizer.rst
diff --git a/doc/api/v2/fluid/param_attr.rst b/doc/api/fluid/param_attr.rst
similarity index 100%
rename from doc/api/v2/fluid/param_attr.rst
rename to doc/api/fluid/param_attr.rst
diff --git a/doc/api/v2/fluid/profiler.rst b/doc/api/fluid/profiler.rst
similarity index 100%
rename from doc/api/v2/fluid/profiler.rst
rename to doc/api/fluid/profiler.rst
diff --git a/doc/api/v2/fluid/regularizer.rst b/doc/api/fluid/regularizer.rst
similarity index 100%
rename from doc/api/v2/fluid/regularizer.rst
rename to doc/api/fluid/regularizer.rst
diff --git a/doc/api/index_en.rst b/doc/api/index_en.rst
index 77337982be1b9b90d1692ab8b83177ebfa8208b2..fc8dbd07eba248942c03c2b609cfc8d8712ed0c7 100644
--- a/doc/api/index_en.rst
+++ b/doc/api/index_en.rst
@@ -8,4 +8,4 @@ API
     v2/model_configs.rst
     v2/data.rst
     v2/run_logic.rst
-    v2/fluid.rst
+    fluid/index.rst
diff --git a/doc/api/v2/fluid.rst b/doc/api/v2/fluid.rst
deleted file mode 100644
index 5f15cad2b530dfb3702357b3c26885ac2a7b7beb..0000000000000000000000000000000000000000
--- a/doc/api/v2/fluid.rst
+++ /dev/null
@@ -1,18 +0,0 @@
-======================
-Fluid
-======================
-
-..  toctree::
-    :maxdepth: 1
-
-    fluid/layers.rst
-    fluid/data_feeder.rst
-    fluid/executor.rst
-    fluid/initializer.rst
-    fluid/evaluator.rst
-    fluid/nets.rst
-    fluid/optimizer.rst
-    fluid/param_attr.rst
-    fluid/profiler.rst
-    fluid/regularizer.rst
-    fluid/io.rst