diff --git a/httprunner/response.py b/httprunner/response.py
index 7a130dfb..142efc8b 100644
--- a/httprunner/response.py
+++ b/httprunner/response.py
@@ -167,12 +167,21 @@ class ResponseObject(object):
 
         return check_value
 
-    def extract(self, extractors: Dict[Text, Text]) -> Dict[Text, Any]:
+    def extract(self,
+                extractors: Dict[Text, Text],
+                variables_mapping: VariablesMapping = None,
+                functions_mapping: FunctionsMapping = None,
+                ) -> Dict[Text, Any]:
         if not extractors:
             return {}
 
         extract_mapping = {}
         for key, field in extractors.items():
+            if '$' in field:
+                # field contains variable or function
+                field = parse_data(
+                    field, variables_mapping, functions_mapping
+                )
             field_value = self._search_jmespath(field)
             extract_mapping[key] = field_value
 
diff --git a/httprunner/runner.py b/httprunner/runner.py
index 00a46f53..f68ac3d4 100644
--- a/httprunner/runner.py
+++ b/httprunner/runner.py
@@ -195,7 +195,7 @@ class HttpRunner(object):
 
         # extract
         extractors = step.extract
-        extract_mapping = resp_obj.extract(extractors)
+        extract_mapping = resp_obj.extract(extractors, step.variables, self.__project_meta.functions)
         step_data.export_vars = extract_mapping
 
         variables_mapping = step.variables
diff --git a/tests/response_test.py b/tests/response_test.py
index 7f98cfa3..05e9cc39 100644
--- a/tests/response_test.py
+++ b/tests/response_test.py
@@ -21,11 +21,26 @@ class TestResponse(unittest.TestCase):
         self.resp_obj = ResponseObject(resp)
 
     def test_extract(self):
+        variables_mapping = {
+            'body': 'body'
+        }
+        functions_mapping = {
+            'get_name': lambda: 'name',
+        }
         extract_mapping = self.resp_obj.extract(
-            {"var_1": "body.json.locations[0]", "var_2": "body.json.locations[3].name"}
+            {
+                "var_1": "body.json.locations[0]",
+                "var_2": "body.json.locations[3].name",
+                "var_3": "$body.json.locations[3].name",
+                "var_4": "$body.json.locations[3].${get_name()}",
+            },
+            variables_mapping=variables_mapping,
+            functions_mapping=functions_mapping,
         )
         self.assertEqual(extract_mapping["var_1"], {"name": "Seattle", "state": "WA"})
         self.assertEqual(extract_mapping["var_2"], "Olympia")
+        self.assertEqual(extract_mapping["var_3"], "Olympia")
+        self.assertEqual(extract_mapping["var_4"], "Olympia")
 
     def test_validate(self):
         self.resp_obj.validate(