diff --git a/ate/utils.py b/ate/utils.py
index aea20f3f..835335c1 100644
--- a/ate/utils.py
+++ b/ate/utils.py
@@ -366,8 +366,15 @@ def update_ordered_dict(ordered_dict, override_mapping):
 def override_variables_binds(variable_binds, new_mapping):
     """ convert variable_binds in testcase to ordered mapping, with new_mapping overrided
     """
+    if isinstance(variable_binds, list):
+        variable_binds_ordered_dict = convert_to_order_dict(variable_binds)
+    elif isinstance(variable_binds, OrderedDict):
+        variable_binds_ordered_dict = variable_binds
+    else:
+        raise exception.ParamsError("variable_binds error!")
+
     return update_ordered_dict(
-        convert_to_order_dict(variable_binds),
+        variable_binds_ordered_dict,
         new_mapping
     )
 
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 0c1d9ec1..9cde8467 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,8 +1,10 @@
 import os
-from ate import utils
-from ate import exception
+from collections import OrderedDict
+
+from ate import exception, utils
 from tests.base import ApiServerUnittest
 
+
 class TestUtils(ApiServerUnittest):
 
     def test_load_testcases_bad_filepath(self):
@@ -278,3 +280,19 @@ class TestUtils(ApiServerUnittest):
         new_dict = utils.override_variables_binds(map_list, override_mapping)
         self.assertEqual(3, new_dict["a"])
         self.assertEqual(4, new_dict["c"])
+
+        map_list = OrderedDict(
+            {
+                "a": 1,
+                "b": 2
+            }
+        )
+        override_mapping = {"a": 3, "c": 4}
+        new_dict = utils.override_variables_binds(map_list, override_mapping)
+        self.assertEqual(3, new_dict["a"])
+        self.assertEqual(4, new_dict["c"])
+
+        map_list = "invalid"
+        override_mapping = {"a": 3, "c": 4}
+        with self.assertRaises(exception.ParamsError):
+            utils.override_variables_binds(map_list, override_mapping)