diff --git a/python/paddle/fluid/dygraph/base.py b/python/paddle/fluid/dygraph/base.py
index 69fb23383e5fc06da46d1791a056b6d8f4da8c52..9b540c378e9d3b0b8bb30f8c801bdad5016ce362 100644
--- a/python/paddle/fluid/dygraph/base.py
+++ b/python/paddle/fluid/dygraph/base.py
@@ -117,11 +117,15 @@ def enabled():
 
 def enable_dygraph(place=None):
     """
-    This function enables dynamic graph mode.
+
+    .. note::
+        Dynamic graph mode is turn ON by default since paddle 2.0.0
+
+    This API turn OFF static graph mode. You can turn ON static graph mode by `enable_static <./disable_dygraph_en.html>`_ .
 
     Parameters:
-        place(fluid.CPUPlace or fluid.CUDAPlace, optional): Place to execute dygraph.
-            If None, the running place will be determined according to the way of paddle compilation. Default: None
+        place(paddle.CPUPlace|paddle.CUDAPlace, optional): Place to run dynamic graph. Default: None. Which means that the running place will be 
+            determined according to the way of paddle compilation. 
 
     return:
         None
@@ -129,12 +133,15 @@ def enable_dygraph(place=None):
     Examples:
         .. code-block:: python
 
-            import paddle.fluid as fluid
+            import paddle
+            print(paddle.in_dynamic_mode())  # True, dynamic mode is turn ON by default since paddle 2.0.0
+
+            paddle.enable_static()
+            print(paddle.in_dynamic_mode())  # False, Now we are in static mode
+
+            paddle.disable_static()
+            print(paddle.in_dynamic_mode())  # True, Now we are in dynamic mode
 
-            fluid.enable_dygraph()  # Now we are in dygragh mode
-            print(fluid.in_dygraph_mode())  # True
-            fluid.disable_dygraph()
-            print(fluid.in_dygraph_mode())  # False
     """
     global _functional_dygraph_context_manager
     if _functional_dygraph_context_manager is None:
@@ -147,7 +154,11 @@ def enable_dygraph(place=None):
 
 def disable_dygraph():
     """
-    This function disables dynamic graph mode.
+
+    .. note::
+        Dynamic graph mode is turn ON by default since paddle 2.0.0
+
+    This API turn ON static graph mode. You can turn ON static graph mode by `disable_static <./enable_dygraph_en.html>`_ .
 
     return:
         None
@@ -155,12 +166,15 @@ def disable_dygraph():
     Examples:
         .. code-block:: python
 
-            import paddle.fluid as fluid
+            import paddle
+            print(paddle.in_dynamic_mode())  # True, dynamic mode is turn ON by default since paddle 2.0.0
+
+            paddle.enable_static()
+            print(paddle.in_dynamic_mode())  # False, Now we are in static mode
+
+            paddle.disable_static()
+            print(paddle.in_dynamic_mode())  # True, Now we are in dynamic mode
 
-            fluid.enable_dygraph()  # Now we are in dygragh mode
-            print(fluid.in_dygraph_mode())  # True
-            fluid.disable_dygraph()
-            print(fluid.in_dygraph_mode())  # False
     """
     global _functional_dygraph_context_manager
     if _functional_dygraph_context_manager is not None:
diff --git a/python/paddle/fluid/framework.py b/python/paddle/fluid/framework.py
index d4a4b135cdb5c6d9d25b564661289892e3f57339..efd15c193ac23b041e87516e516a8f0b84b48d13 100644
--- a/python/paddle/fluid/framework.py
+++ b/python/paddle/fluid/framework.py
@@ -180,27 +180,30 @@ def require_version(min_version, max_version=None):
 
 def in_dygraph_mode():
     """
-    :alias_main: paddle.in_dygraph_mode
-	:alias: paddle.in_dygraph_mode
-	:old_api: paddle.fluid.framework.in_dygraph_mode
 
-    This function checks whether the program runs in dynamic graph mode or not.
-    You can enter dynamic graph mode with :ref:`api_fluid_dygraph_guard` api,
-    or enable and disable dynamic graph mode with :ref:`api_fluid_dygraph_enable`
-    and :ref:`api_fluid_dygraph_disable` api .
+    .. note::
+        Dynamic graph mode is turn ON by default since paddle 2.0.0
+
+    This API checks whether paddle runs in dynamic graph mode.
+
+    You can turn ON static graph mode by `enable_static <../dygraph/base/disable_dygraph_en.html>`_ ,
+    and turn OFF static graph mode by `disable_static <../dygraph/base/enable_dygraph_en.html>`_  .
 
     Returns:
-        bool: Whether the program is running in dynamic graph mode.
+        bool: Whether paddle runs in dynamic graph mode.
 
     Examples:
         .. code-block:: python
 
-            import paddle.fluid as fluid
+            import paddle
+            print(paddle.in_dynamic_mode())  # True, dynamic mode is turn ON by default since paddle 2.0.0
+
+            paddle.enable_static()
+            print(paddle.in_dynamic_mode())  # False, Now we are in static mode
+
+            paddle.disable_static()
+            print(paddle.in_dynamic_mode())  # True, Now we are in dynamic mode
 
-            fluid.enable_dygraph()  # Now we are in dygragh mode
-            print(fluid.in_dygraph_mode())  # True
-            fluid.disable_dygraph()
-            print(fluid.in_dygraph_mode())  # False
     """
     return _dygraph_tracer_ is not None