diff --git a/funasr/bin/train.py b/funasr/bin/train.py
index 15180710b..f056b08a7 100755
--- a/funasr/bin/train.py
+++ b/funasr/bin/train.py
@@ -388,9 +388,10 @@ def get_parser():
 
 if __name__ == '__main__':
     parser = get_parser()
-    args = parser.parse_args()
-    task_args = build_args(args)
-    args = argparse.Namespace(**vars(args), **vars(task_args))
+    args, extra_task_params = parser.parse_known_args()
+    if extra_task_params:
+        task_args = build_args(args, extra_task_params)
+        args = argparse.Namespace(**vars(args), **vars(task_args))
 
     # set random seed
     set_all_random_seed(args.seed)
diff --git a/funasr/build_utils/build_args.py b/funasr/build_utils/build_args.py
index b77cbcc4c..1d0728bc1 100644
--- a/funasr/build_utils/build_args.py
+++ b/funasr/build_utils/build_args.py
@@ -8,7 +8,7 @@ from funasr.utils.types import str2bool
 from funasr.utils.types import str_or_none
 
 
-def build_args(args):
+def build_args(args, extra_task_params):
     parser = argparse.ArgumentParser("Task related config")
     if args.task_name == "asr":
         from funasr.build_utils.build_asr_model import class_choices_list
@@ -85,5 +85,5 @@ def build_args(args):
     else:
         raise NotImplementedError("Not supported task: {}".format(args.task_name))
 
-    task_args = parser.parse_args()
+    task_args = parser.parse_args(extra_task_params)
     return task_args