diff --git a/ppdet/data/source/dataset.py b/ppdet/data/source/dataset.py
index fda0c7d22f616cdd54b9ac95d080f97bbdcff01e..7cddaa93a8cf8fdae0ae5008ea970aa4fdb91166 100644
--- a/ppdet/data/source/dataset.py
+++ b/ppdet/data/source/dataset.py
@@ -41,7 +41,7 @@ class DataSet(object):
                  anno_path=None,
                  sample_num=-1,
                  with_background=True,
-                 use_default_label=None,
+                 use_default_label=False,
                  **kwargs):
         super(DataSet, self).__init__()
         self.anno_path = anno_path
@@ -117,7 +117,7 @@ class ImageFolder(DataSet):
                  anno_path=None,
                  sample_num=-1,
                  with_background=True,
-                 use_default_label=None,
+                 use_default_label=False,
                  **kwargs):
         super(ImageFolder, self).__init__(dataset_dir, image_dir, anno_path,
                                           sample_num, with_background,
diff --git a/ppdet/data/source/voc.py b/ppdet/data/source/voc.py
index 560ed17ea24028963c51ecddedcf4ac095a2e9f8..84c5990c3745574e0878bc087876cd8dd28312af 100644
--- a/ppdet/data/source/voc.py
+++ b/ppdet/data/source/voc.py
@@ -51,7 +51,7 @@ class VOCDataSet(DataSet):
                  image_dir=None,
                  anno_path=None,
                  sample_num=-1,
-                 use_default_label=True,
+                 use_default_label=False,
                  with_background=True,
                  label_list='label_list.txt'):
         super(VOCDataSet, self).__init__(