diff --git a/modelscope/trainers/audio/asr_trainer.py b/modelscope/trainers/audio/asr_trainer.py
index 04d57f51..5d9197c8 100644
--- a/modelscope/trainers/audio/asr_trainer.py
+++ b/modelscope/trainers/audio/asr_trainer.py
@@ -126,8 +126,11 @@ class ASRTrainer(BaseTrainer):
             cfg_dict['cmvn_file'] = os.path.join(
                 cur_dir, config['model']['model_config']['mvn_file'])
             cfg_dict['seg_dict'] = os.path.join(cur_dir, 'seg_dict')
-            cfg_dict['bpemodel'] = os.path.join(
-                cur_dir, config['model']['model_config']['bpemodel'])
+            if 'bpemodel' in config['model']['model_config']:
+                cfg_dict['bpemodel'] = os.path.join(
+                    cur_dir, config['model']['model_config']['bpemodel'])
+            else:
+                cfg_dict['bpemodel'] = None
             if 'init_model' in config['model']['model_config']:
                 cfg_dict['init_model'] = os.path.join(
                     cur_dir, config['model']['model_config']['init_model'])