diff --git a/python/paddle/fluid/tests/unittests/test_dataset.py b/python/paddle/fluid/tests/unittests/test_dataset.py
index 9fc65f47b2ce3a075ea090641de1229a7eafc604..7e2d144f9a2523ba4fecef1a27728b5921a66744 100644
--- a/python/paddle/fluid/tests/unittests/test_dataset.py
+++ b/python/paddle/fluid/tests/unittests/test_dataset.py
@@ -12,8 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """
-TestCases for Dataset.
-
+TestCases for Dataset,
+including create, config, run, etc.
 """
 
 from __future__ import print_function