diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 995d5ee3..9fc5c801 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '1.5.5'
+__version__ = '1.5.6'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/response.py b/httprunner/response.py
index d00a397c..9a2a3b89 100644
--- a/httprunner/response.py
+++ b/httprunner/response.py
@@ -82,6 +82,16 @@ class ResponseObject(object):
                     err_msg += u"attribute: {}".format(sub_query)
                     logger.log_error(err_msg)
                     raise exception.ParamsError(err_msg)
+            elif top_query == "elapsed":
+                if sub_query in ["days", "seconds", "microseconds"]:
+                    return getattr(self.elapsed, sub_query)
+                elif sub_query == "total_seconds":
+                    return self.elapsed.total_seconds()
+                else:
+                    err_msg = "{}: {} is not valid timedelta attribute.\n".format(field, sub_query)
+                    err_msg += "elapsed only support attributes: days, seconds, microseconds, total_seconds.\n"
+                    logger.log_error(err_msg)
+                    raise exception.ParamsError(err_msg)
 
             try:
                 top_query_content = getattr(self, top_query)
@@ -96,11 +106,11 @@ class ResponseObject(object):
                         # TODO: remove compatibility for content, text
                         if isinstance(top_query_content, bytes):
                             top_query_content = top_query_content.decode("utf-8")
-                        
+
                         if isinstance(top_query_content, PreparedRequest):
                             top_query_content = top_query_content.__dict__
-                        else:                                                        
-                            top_query_content = json.loads(top_query_content) 
+                        else:
+                            top_query_content = json.loads(top_query_content)
                     except json.decoder.JSONDecodeError:
                         err_msg = u"Failed to extract data with delimiter!\n"
                         err_msg += u"response content: {}\n".format(self.content)
diff --git a/tests/test_runner.py b/tests/test_runner.py
index 460f90c6..390956eb 100644
--- a/tests/test_runner.py
+++ b/tests/test_runner.py
@@ -332,3 +332,30 @@ class TestRunner(ApiServerUnittest):
         self.assertTrue(summary["success"])
         self.assertEqual(len(summary["details"][0]["output"]), 3 * 2 * 2)
         self.assertEqual(summary["stat"]["testsRun"], 3 * 2 * 2)
+
+    def test_run_validate_elapsed(self):
+        test = {
+            "name": "get token",
+            "request": {
+                "url": "http://127.0.0.1:5000/api/get-token",
+                "method": "POST",
+                "headers": {
+                    "content-type": "application/json",
+                    "user_agent": "iOS/10.3",
+                    "device_sn": "HZfFBh6tU59EdXJ",
+                    "os_platform": "ios",
+                    "app_version": "2.8.6"
+                },
+                "json": {
+                    "sign": "f1219719911caae89ccc301679857ebfda115ca2"
+                }
+            },
+            "validate": [
+                {"check": "status_code", "expect": 200},
+                {"check": "elapsed.seconds", "comparator": "lt", "expect": 1},
+                {"check": "elapsed.days", "comparator": "eq", "expect": 0},
+                {"check": "elapsed.microseconds", "comparator": "gt", "expect": 1000},
+                {"check": "elapsed.total_seconds", "comparator": "lt", "expect": 1}
+            ]
+        }
+        self.test_runner.run_test(test)