diff --git a/doc/paddle/api/paddle/fluid/unique_name/generate_cn.rst b/doc/paddle/api/paddle/fluid/unique_name/generate_cn.rst
index 4eb8a68c09bf029f5363f04ff9461b5e5aa9ecff..355a7133d4df1fddd7838e1ee39367be1ffffb44 100644
--- a/doc/paddle/api/paddle/fluid/unique_name/generate_cn.rst
+++ b/doc/paddle/api/paddle/fluid/unique_name/generate_cn.rst
@@ -3,7 +3,7 @@
 generate
 -------------------------------
 
-.. py:function:: paddle.fluid.unique_name.generate(key)
+.. py:function:: paddle.utils.unique_name.generate(key)
 
 
 
@@ -21,9 +21,9 @@ generate
 
 .. code-block:: python
 
-        import paddle.fluid as fluid
-        name1 = fluid.unique_name.generate('fc')
-        name2 = fluid.unique_name.generate('fc')
+        import paddle
+        name1 = paddle.utils.unique_name.generate('fc')
+        name2 = paddle.utils.unique_name.generate('fc')
         print(name1, name2)  # fc_0, fc_1 
 
 
diff --git a/doc/paddle/api/paddle/fluid/unique_name/guard_cn.rst b/doc/paddle/api/paddle/fluid/unique_name/guard_cn.rst
index 7c457eb15118baf6823be9e404fc2fa053b6a2f6..e324527de868b64c29abda1fe9047648ef287a76 100644
--- a/doc/paddle/api/paddle/fluid/unique_name/guard_cn.rst
+++ b/doc/paddle/api/paddle/fluid/unique_name/guard_cn.rst
@@ -3,7 +3,7 @@
 guard
 -------------------------------
 
-.. py:function:: paddle.fluid.unique_name.guard(new_generator=None)
+.. py:function:: paddle.utils.unique_name.guard(new_generator=None)
 
 
 
@@ -19,17 +19,17 @@ guard
 
 .. code-block:: python
 
-        import paddle.fluid as fluid
-        with fluid.unique_name.guard():
-            name_1 = fluid.unique_name.generate('fc')
-        with fluid.unique_name.guard():
-            name_2 = fluid.unique_name.generate('fc')
+        import paddle
+        with paddle.utils.unique_name.guard():
+            name_1 = paddle.utils.unique_name.generate('fc')
+        with paddle.utils.unique_name.guard():
+            name_2 = paddle.utils.unique_name.generate('fc')
         print(name_1, name_2)  # fc_0, fc_0
          
-        with fluid.unique_name.guard('A'):
-            name_1 = fluid.unique_name.generate('fc')
-        with fluid.unique_name.guard('B'):
-            name_2 = fluid.unique_name.generate('fc')
+        with paddle.utils.unique_name.guard('A'):
+            name_1 = paddle.utils.unique_name.generate('fc')
+        with paddle.utils.unique_name.guard('B'):
+            name_2 = paddle.utils.unique_name.generate('fc')
         print(name_1, name_2)  # Afc_0, Bfc_0
 
 
diff --git a/doc/paddle/api/paddle/fluid/unique_name/switch_cn.rst b/doc/paddle/api/paddle/fluid/unique_name/switch_cn.rst
index 93da7cc1dd97162fbc09b6ae811c2a8f0f11a958..510c887e29087e600f3e4d90c52bfe0f234a4c82 100644
--- a/doc/paddle/api/paddle/fluid/unique_name/switch_cn.rst
+++ b/doc/paddle/api/paddle/fluid/unique_name/switch_cn.rst
@@ -3,7 +3,7 @@
 switch
 -------------------------------
 
-.. py:function:: paddle.fluid.unique_name.switch(new_generator=None)
+.. py:function:: paddle.utils.unique_name.switch(new_generator=None)
 
 
 
@@ -21,15 +21,15 @@ switch
 
 .. code-block:: python
 
-        import paddle.fluid as fluid
-        name1 = fluid.unique_name.generate('fc')
-        name2 = fluid.unique_name.generate('fc')
+        import paddle
+        name1 = paddle.utils.unique_name.generate('fc')
+        name2 = paddle.utils.unique_name.generate('fc')
         print(name1, name2)  # fc_0, fc_1
          
-        pre_generator = fluid.unique_name.switch()  # 切换到新命名空间
-        name2 = fluid.unique_name.generate('fc')
+        pre_generator, pre_dygraph_name_checker = paddle.utils.unique_name.switch() # 切换到新命名空间
+        name2 = paddle.utils.unique_name.generate('fc')
         print(name2)  # fc_0
 
-        fluid.unique_name.switch(pre_generator)  # 切换回原命名空间
-        name3 = fluid.unique_name.generate('fc')
+        paddle.utils.unique_name.switch(pre_generator, pre_dygraph_name_checker) # 切换回原命名空间
+        name3 = paddle.utils.unique_name.generate('fc')
         print(name3)  # fc_2, 因为原命名空间已生成fc_0, fc_1