diff --git a/ppcls/data/dataloader/imagenet_dataset.py b/ppcls/data/dataloader/imagenet_dataset.py
index 1166ab3851b0c594469f135c1c4b3c7bc921ac5f..897394d99008df1b62e7a5371839c1f659069262 100644
--- a/ppcls/data/dataloader/imagenet_dataset.py
+++ b/ppcls/data/dataloader/imagenet_dataset.py
@@ -21,6 +21,15 @@ from .common_dataset import CommonDataset
 
 
 class ImageNetDataset(CommonDataset):
+    def __init__(
+            self,
+            image_root,
+            cls_label_path,
+            transform_ops=None,
+            delimiter=None):
+        super(ImageNetDataset, self).__init__(image_root, cls_label_path, transform_ops)
+        self.delimiter = delimiter if delimiter is not None else " "
+
     def _load_anno(self, seed=None):
         assert os.path.exists(self._cls_path)
         assert os.path.exists(self._img_root)
@@ -32,7 +41,7 @@ class ImageNetDataset(CommonDataset):
             if seed is not None:
                 np.random.RandomState(seed).shuffle(lines)
             for l in lines:
-                l = l.strip().split(" ")
+                l = l.strip().split(self.delimiter)
                 self.images.append(os.path.join(self._img_root, l[0]))
                 self.labels.append(np.int64(l[1]))
                 assert os.path.exists(self.images[-1])
diff --git a/ppcls/data/postprocess/topk.py b/ppcls/data/postprocess/topk.py
index 9c1371bfd11f4c93f06c82436e88e0ff20a57b35..76987b5d558c75cc3412958ff899992e0caa712f 100644
--- a/ppcls/data/postprocess/topk.py
+++ b/ppcls/data/postprocess/topk.py
@@ -19,10 +19,11 @@ import paddle.nn.functional as F
 
 
 class Topk(object):
-    def __init__(self, topk=1, class_id_map_file=None):
+    def __init__(self, topk=1, class_id_map_file=None, delimiter=None):
         assert isinstance(topk, (int, ))
         self.class_id_map = self.parse_class_id_map(class_id_map_file)
         self.topk = topk
+        self.delimiter = delimiter if delimiter is not None else " "
 
     def parse_class_id_map(self, class_id_map_file):
         if class_id_map_file is None:
@@ -38,7 +39,7 @@ class Topk(object):
             with open(class_id_map_file, "r") as fin:
                 lines = fin.readlines()
                 for line in lines:
-                    partition = line.split("\n")[0].partition(" ")
+                    partition = line.split("\n")[0].partition(self.delimiter)
                     class_id_map[int(partition[0])] = str(partition[-1])
         except Exception as ex:
             print(ex)