diff --git a/docs/api/api_python/mindspore/mindspore.Tensor.rst b/docs/api/api_python/mindspore/mindspore.Tensor.rst
index 746373c6f98..465e14e6e42 100644
--- a/docs/api/api_python/mindspore/mindspore.Tensor.rst
+++ b/docs/api/api_python/mindspore/mindspore.Tensor.rst
@@ -1083,7 +1083,7 @@ mindspore.Tensor
 
         - **TypeError** - `self` 不是Tensor，或者 `axis` 和 `keepdims` 具有前面未指定的类型。
 
-    .. py:method:: random_categorical(num_sample=None, seed=0, dtype=mstype.int64)
+    .. py:method:: random_categorical(num_sample, seed=0, dtype=mstype.int64)
 
         从分类分布中抽取样本。
 
diff --git a/docs/api/api_python/ops/mindspore.ops.MaskedFill.rst b/docs/api/api_python/ops/mindspore.ops.MaskedFill.rst
index cf995ada678..ef80a8e16ef 100644
--- a/docs/api/api_python/ops/mindspore.ops.MaskedFill.rst
+++ b/docs/api/api_python/ops/mindspore.ops.MaskedFill.rst
@@ -1,7 +1,7 @@
 mindspore.ops.MaskedFill
 =========================
 
-.. py:class:: mindspore.ops.MaskedFill(input_x, mask, value)
+.. py:class:: mindspore.ops.MaskedFill()
 
     将掩码位置为True的位置填充指定的值。
 
diff --git a/mindspore/python/mindspore/common/tensor.py b/mindspore/python/mindspore/common/tensor.py
index 5a75a64e907..3047da930db 100644
--- a/mindspore/python/mindspore/common/tensor.py
+++ b/mindspore/python/mindspore/common/tensor.py
@@ -3367,12 +3367,11 @@ class Tensor(Tensor_):
         the variable `input_params` refers to input tensor.
 
         Note:
-            1.The value of `input_indices` must be in the range of `[0, input_param.shape[axis])`, the result
-              is undefined out of range.
-
-            2.The data type of `input_params` cannot be
-              `bool_ <https://www.mindspore.cn/docs/en/master/api_python/mindspore.html#mindspore.dtype>`_ on Ascend
-              platform currently.
+            1. The value of `input_indices` must be in the range of `[0, input_param.shape[axis])`, the result
+               is undefined out of range.
+            2. The data type of `input_params` cannot be
+               `bool_ <https://www.mindspore.cn/docs/en/master/api_python/mindspore.html#mindspore.dtype>`_ on Ascend
+               platform currently.
 
         Args:
             input_indices (Tensor): Index tensor to be sliced, the shape of tensor is :math:`(y_1, y_2, ..., y_S)`.