diff --git a/httprunner/testcase.py b/httprunner/testcase.py
index 9b21615e..46ec1c19 100644
--- a/httprunner/testcase.py
+++ b/httprunner/testcase.py
@@ -85,15 +85,16 @@ def parse_function(content):
         "kwargs": {}
     }
 
-    args_str = matched.group(2).replace(" ", "")
+    args_str = matched.group(2).strip()
     if args_str == "":
         return function_meta
 
     args_list = args_str.split(',')
     for arg in args_list:
+        arg = arg.strip()
         if '=' in arg:
             key, value = arg.split('=')
-            function_meta["kwargs"][key] = parse_string_value(value)
+            function_meta["kwargs"][key.strip()] = parse_string_value(value.strip())
         else:
             function_meta["args"].append(parse_string_value(arg))
 
diff --git a/tests/test_testcase.py b/tests/test_testcase.py
index b1cf356e..95221193 100644
--- a/tests/test_testcase.py
+++ b/tests/test_testcase.py
@@ -458,6 +458,19 @@ class TestcaseParserUnittest(unittest.TestCase):
             testcase.parse_function("func($request, 123)"),
             {'func_name': 'func', 'args': ["$request", 123], 'kwargs': {}}
         )
+        self.assertEqual(
+            testcase.parse_function("func( )"),
+            {'func_name': 'func', 'args': [], 'kwargs': {}}
+        )
+        self.assertEqual(
+            testcase.parse_function("func(hello world, a=3, b=4)"),
+            {'func_name': 'func', 'args': ["hello world"], 'kwargs': {'a': 3, 'b': 4}}
+        )
+        self.assertEqual(
+            testcase.parse_function("func($request, 12 3)"),
+            {'func_name': 'func', 'args': ["$request", '12 3'], 'kwargs': {}}
+        )
+
 
     def test_parse_content_with_bindings_variables(self):
         variables = {