diff --git a/doc/fluid/api_cn/io_cn/DataLoader_cn.rst b/doc/fluid/api_cn/io_cn/DataLoader_cn.rst
index 28d0cdb0ad0a81b912992ed7aea864f74f009294..cb1e641bd9ac896063c5b1be40cb4fa48aaae4d4 100755
--- a/doc/fluid/api_cn/io_cn/DataLoader_cn.rst
+++ b/doc/fluid/api_cn/io_cn/DataLoader_cn.rst
@@ -39,7 +39,7 @@ DataLoader当前仅支持 ``map-style`` 的数据集(可通过下标索引样本
 
     import numpy as np
     import paddle.fluid as fluid
-    from paddle.fluid.io import Dataset, MnistDataset, BatchSampler, DataLoader
+    from paddle.io import Dataset, BatchSampler, DataLoader
 
     BATCH_NUM = 20
     BATCH_SIZE = 16