diff --git a/evaluate/evaluate.py b/evaluate/evaluate.py
index 2ccdd5b..2162d4f 100644
--- a/evaluate/evaluate.py
+++ b/evaluate/evaluate.py
@@ -21,9 +21,11 @@ parser.add_argument('--query_size', type=int, default=100)
 parser.add_argument('--topk', type=int, default=10)
 parser.add_argument('--collection_name', type=str, default=None)
 parser.add_argument('--format', type=str, required=True)
+parser.add_argument('--onnx_dir', type=str, default='../saved/onnx')
 
 args = parser.parse_args()
 model_name = args.model
+onnx_path = os.path.join(args.onnx_dir, model_name.replace('/', '-'), '.onnx')
 dataset_name = args.dataset
 insert_size = args.insert_size
 query_size = args.query_size
@@ -76,7 +78,6 @@ def create_milvus(collection_name):
 if args.format == 'pytorch':
     collection_name = collection_name + '_pytorch'
 
-
     def insert(model_name, collection_name):
         (
             towhee.dc['text', 'label'](zip(insert_data['text'], insert_data['label'])).stream()
@@ -120,9 +121,8 @@ if args.format == 'pytorch':
 elif args.format == 'onnx':
     collection_name = collection_name + '_onnx'
     saved_name = model_name.replace('/', '-')
-    onnx_path = f'saved/onnx/{saved_name}.onnx'
     if not os.path.exists(onnx_path):
-        op.save_model(format='onnx')
+        op.save_model(format='onnx', path=onnx_path[:-5])
     sess = onnxruntime.InferenceSession(onnx_path,
                                         providers=onnxruntime.get_available_providers())