diff --git a/docs/api/api_python/dataset/mindspore.dataset.Schema.rst b/docs/api/api_python/dataset/mindspore.dataset.Schema.rst
index e1814d3ad94..c166bf0bb45 100644
--- a/docs/api/api_python/dataset/mindspore.dataset.Schema.rst
+++ b/docs/api/api_python/dataset/mindspore.dataset.Schema.rst
@@ -17,6 +17,8 @@ mindspore.dataset.Schema
 
     **RuntimeError**： 模式文件加载失败。
 
+    .. py:method::add_column(name, de_type, shape=None)
+
         向schema中添加新列。
 
         **参数：**
diff --git a/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.Normal.rst b/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.Normal.rst
index fe2a0214079..0d212892520 100644
--- a/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.Normal.rst
+++ b/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.Normal.rst
@@ -27,4 +27,3 @@ mindspore.nn.probability.distribution.Normal
 
     - **ValueError** - `sd` 中元素小于0。
     - **TypeError** - `dtype` 不是float的子类。
-
diff --git a/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.TransformedDistribution.rst b/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.TransformedDistribution.rst
index 33b1e705d2f..2ead7e1d4c7 100644
--- a/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.TransformedDistribution.rst
+++ b/docs/api/api_python/nn_probability/mindspore.nn.probability.distribution.TransformedDistribution.rst
@@ -21,4 +21,3 @@ mindspore.nn.probability.distribution.TransformedDistribution
 
     - **TypeError** - bijector不是Bijector类。
     - **TypeError** - distribution不是Distribution类。
-