diff --git a/x2paddle/convert.py b/x2paddle/convert.py
index 42b4cbfe9d7b7d8d73bbbb512b68f9dce8f6af5d..8c1198c1aee8faf37938c6b67aa7df1b3806a1b2 100644
--- a/x2paddle/convert.py
+++ b/x2paddle/convert.py
@@ -66,8 +66,8 @@ def arg_parser():
     parser.add_argument(
         "--without_data_format_optimization",
         "-wo",
-        action="store_true",
-        default=True,
+        type=_text_type,
+        default="True",
         help="tf model conversion without data format optimization")
     parser.add_argument(
         "--define_input_shape",
@@ -93,7 +93,7 @@ def arg_parser():
 
 def tf2paddle(model_path,
               save_dir,
-              without_data_format_optimization=False,
+              without_data_format_optimization,
               define_input_shape=False,
               params_merge=False):
     # check tensorflow installation and version
@@ -240,11 +240,12 @@ def main():
 
     if args.framework == "tensorflow":
         assert args.model is not None, "--model should be defined while translating tensorflow model"
-        without_data_format_optimization = False
+        assert args.without_data_format_optimization in [
+            "True", "False"
+        ], "--the param without_data_format_optimization should be defined True or False"
         define_input_shape = False
         params_merge = False
-        if args.without_data_format_optimization:
-            without_data_format_optimization = True
+        without_data_format_optimization = True if args.without_data_format_optimization == "True" else False
         if args.define_input_shape:
             define_input_shape = True
         if args.params_merge: