diff --git a/paddlespeech/cls/exps/panns/deploy/predict.py b/paddlespeech/cls/exps/panns/deploy/predict.py
index 2888590c9..56fb0756d 100644
--- a/paddlespeech/cls/exps/panns/deploy/predict.py
+++ b/paddlespeech/cls/exps/panns/deploy/predict.py
@@ -74,11 +74,10 @@ class Predictor(object):
                  enable_mkldnn=False):
         self.batch_size = batch_size
 
-        model_file = os.path.join(model_dir, "inference.pdmodel")
-        if not os.path.exists(model_file):
+        if os.path.exists(os.path.join(model_dir, "inference.json")):
             model_file = os.path.join(model_dir, "inference.json")
-            if not os.path.exists(model_file):
-                raise ValueError("Inference model file not exists!")
+        else:
+            model_file = os.path.join(model_dir, "inference.pdmodel")
 
         params_file = os.path.join(model_dir, "inference.pdiparams")