diff --git a/core/trainers/framework/dataset.py b/core/trainers/framework/dataset.py
index 8a01476c548a7017cbcf5803d23901e6d1a519e7..8059eeb09a482671b8329fb88f5b52cfd64f163b 100644
--- a/core/trainers/framework/dataset.py
+++ b/core/trainers/framework/dataset.py
@@ -89,24 +89,6 @@ class QueueDataset(DatasetBase):
         else:
             return self._get_dataset(dataset_name, context)
 
-    def check_filelist(self, file_list, train_data_path):
-        for root, dirs, files in os.walk(train_data_path):
-            files = [f for f in files if not f[0] == '.']
-            dirs[:] = [d for d in dirs if not d[0] == '.']
-            if (files == None and dirs == None):
-                 return None
-            else:
-                # use files and dirs
-                for file_name in files:
-                    file_list.append(os.path.join(train_data_path, file_name))
-                    print(os.path.join(train_data_path, file_name))
-                for dirs_name in dirs:
-                    dir_root.append(os.path.join(train_data_path, dirs_name))
-                    check_filelist(file_list, os.path.join(
-                        train_data_path, dirs_name))
-                    print(os.path.join(train_data_path, dirs_name))
-                return file_list
-
     def _get_dataset(self, dataset_name, context):
         name = "dataset." + dataset_name + "."
         reader_class = envs.get_global_env(name + "data_converter")
@@ -137,13 +119,10 @@ class QueueDataset(DatasetBase):
         dataset.set_pipe_command(pipe_cmd)
         train_data_path = envs.get_global_env(name + "data_path")
 
-        # file_list = [
-        #     os.path.join(train_data_path, x)
-        #     for x in os.listdir(train_data_path)
-        # ]
-        file_list=[]
-        file_list = self.check_filelist(file_list,train_data_path)
-        
+        file_list = [
+            os.path.join(train_data_path, x)
+            for x in os.listdir(train_data_path)
+        ]
         if context["engine"] == EngineMode.LOCAL_CLUSTER:
             file_list = split_files(file_list, context["fleet"].worker_index(),
                                     context["fleet"].worker_num())
diff --git a/core/utils/dataloader_instance.py b/core/utils/dataloader_instance.py
index b5e86baf6ea30b9b2d73d13b55d2dc2c67b849fc..2461473aa79a51133db8aa319f4ee7d45981d815 100755
--- a/core/utils/dataloader_instance.py
+++ b/core/utils/dataloader_instance.py
@@ -38,27 +38,7 @@ def dataloader_by_name(readerclass,
         assert package_base is not None
         data_path = os.path.join(package_base, data_path.split("::")[1])
 
-    def check_filelist(file_list, train_data_path):
-        for root, dirs, files in os.walk(train_data_path):
-            files = [f for f in files if not f[0] == '.']
-            dirs[:] = [d for d in dirs if not d[0] == '.']
-            if (files == None and dirs == None):
-                return None
-            else:
-                # use files and dirs
-                for file_name in files:
-                    file_list.append(os.path.join(train_data_path, file_name))
-                    print(os.path.join(train_data_path, file_name))
-                for dirs_name in dirs:
-                    dir_root.append(os.path.join(train_data_path, dirs_name))
-                    check_filelist(file_list, os.path.join(
-                        train_data_path, dirs_name))
-                    print(os.path.join(train_data_path, dirs_name))
-                return file_list
-
-    #files = [str(data_path) + "/%s" % x for x in os.listdir(data_path)]
-    files = []
-    files = check_filelist(files, data_path)
+    files = [str(data_path) + "/%s" % x for x in os.listdir(data_path)]
     if context["engine"] == EngineMode.LOCAL_CLUSTER:
         files = split_files(files, context["fleet"].worker_index(),
                             context["fleet"].worker_num())
@@ -100,27 +80,7 @@ def slotdataloader_by_name(readerclass, dataset_name, yaml_file, context):
         assert package_base is not None
         data_path = os.path.join(package_base, data_path.split("::")[1])
 
-    def check_filelist(file_list, train_data_path):
-        for root, dirs, files in os.walk(train_data_path):
-            files = [f for f in files if not f[0] == '.']
-            dirs[:] = [d for d in dirs if not d[0] == '.']
-            if (files == None and dirs == None):
-                return None
-            else:
-                # use files and dirs
-                for file_name in files:
-                    file_list.append(os.path.join(train_data_path, file_name))
-                    print(os.path.join(train_data_path, file_name))
-                for dirs_name in dirs:
-                    dir_root.append(os.path.join(train_data_path, dirs_name))
-                    check_filelist(file_list, os.path.join(
-                        train_data_path, dirs_name))
-                    print(os.path.join(train_data_path, dirs_name))
-                return file_list
-
-    #files = [str(data_path) + "/%s" % x for x in os.listdir(data_path)]
-    files = []
-    files = check_filelist(files, data_path)
+    files = [str(data_path) + "/%s" % x for x in os.listdir(data_path)]
     if context["engine"] == EngineMode.LOCAL_CLUSTER:
         files = split_files(files, context["fleet"].worker_index(),
                             context["fleet"].worker_num())