diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36611042..d07c7b56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release History
 
+## 2.2.2 (2019-06-26)
+
+**Features**
+
+- `extract` is used to replace `output` when passing former teststep's (as a testcase) export value to next teststep
+
 ## 2.2.1 (2019-06-25)
 
 **Features**
diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index df64ac93..2c14eaef 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__ = '2.2.1'
+__version__ = '2.2.2'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'Apache-2.0'
diff --git a/httprunner/parser.py b/httprunner/parser.py
index a1e8a4f7..c0cce828 100644
--- a/httprunner/parser.py
+++ b/httprunner/parser.py
@@ -942,7 +942,13 @@ def __prepare_testcase_tests(tests, config, project_mapping, session_variables_s
         if "testcase_def" in test_dict:
             # test_dict is nested testcase
 
-            if "output" in test_dict:
+            # pass former teststep's (as a testcase) export value to next teststep
+            # Since V2.2.2, `extract` is used to replace `output`,
+            # `output` is also kept for compatibility
+            if "extract" in test_dict:
+                session_variables_set |= set(test_dict["extract"])
+            elif "output" in test_dict:
+                # kept for compatibility
                 session_variables_set |= set(test_dict["output"])
 
             # 2, testcase test_dict => testcase_def config
diff --git a/tests/test_api.py b/tests/test_api.py
index db13b543..694ea9df 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -636,23 +636,28 @@ class TestApi(ApiServerUnittest):
         self.assertEqual(len(tests_results[0][1].records), 2)
 
     def test_testcase_complex_run_suite(self):
-        testcase_path = "tests/testcases/create_user.yml"
-        tests_mapping = loader.load_tests(testcase_path)
-        testcases = parser.parse_tests(tests_mapping)
-        runner = HttpRunner()
-        test_suite = runner._add_tests(testcases)
-        tests_results = runner._run_suite(test_suite)
-        self.assertEqual(len(tests_results[0][1].records), 2)
+        for testcase_path in [
+            "tests/testcases/create_user.yml",
+            "tests/testcases/create_user.v2.yml",
+            "tests/testcases/create_user.json",
+            "tests/testcases/create_user.v2.json"
+        ]:
+            tests_mapping = loader.load_tests(testcase_path)
+            testcases = parser.parse_tests(tests_mapping)
+            runner = HttpRunner()
+            test_suite = runner._add_tests(testcases)
+            tests_results = runner._run_suite(test_suite)
+            self.assertEqual(len(tests_results[0][1].records), 2)
 
-        results = tests_results[0][1]
-        self.assertEqual(
-            results.records[0]["name"],
-            "setup and reset all (override) for TESTCASE_CREATE_XXX."
-        )
-        self.assertEqual(
-            results.records[1]["name"],
-            "create user and check result."
-        )
+            results = tests_results[0][1]
+            self.assertEqual(
+                results.records[0]["name"],
+                "setup and reset all (override) for TESTCASE_CREATE_XXX."
+            )
+            self.assertEqual(
+                results.records[1]["name"],
+                "create user and check result."
+            )
 
     def test_testsuite_loader(self):
         testcase_path = "tests/testsuites/create_users.yml"
diff --git a/tests/test_loader.py b/tests/test_loader.py
index b7ffbe27..be22a520 100644
--- a/tests/test_loader.py
+++ b/tests/test_loader.py
@@ -271,8 +271,7 @@ class TestSuiteLoader(unittest.TestCase):
             "testcase": "testcases/setup.yml",
             "variables": [
                 {"device_sn": "$device_sn"}
-            ],
-            "output": ["token", "device_sn"]
+            ]
         }
         testcase = loader.load_teststep(raw_test)
         self.assertEqual(
diff --git a/tests/testcases/create_user.json b/tests/testcases/create_user.json
new file mode 100644
index 00000000..30af7ce8
--- /dev/null
+++ b/tests/testcases/create_user.json
@@ -0,0 +1,34 @@
+[
+  {
+    "config": {
+      "id": "create_user",
+      "variables": {
+        "device_sn": "TESTCASE_CREATE_XXX",
+        "uid": 9001
+      },
+      "output": [
+        "session_token"
+      ],
+      "base_url": "http://127.0.0.1:5000",
+      "name": "create user and check result."
+    }
+  },
+  {
+    "test": {
+      "testcase": "testcases/setup.yml",
+      "extract": [
+        "session_token"
+      ],
+      "name": "setup and reset all (override) for $device_sn."
+    }
+  },
+  {
+    "test": {
+      "testcase": "testcases/deps/check_and_create.yml",
+      "variables": {
+        "token": "$session_token"
+      },
+      "name": "create user and check result."
+    }
+  }
+]
\ No newline at end of file
diff --git a/tests/testcases/create_user.v2.json b/tests/testcases/create_user.v2.json
new file mode 100644
index 00000000..12f537e9
--- /dev/null
+++ b/tests/testcases/create_user.v2.json
@@ -0,0 +1,30 @@
+{
+  "config": {
+    "id": "create_user",
+    "variables": {
+      "device_sn": "TESTCASE_CREATE_XXX",
+      "uid": 9001
+    },
+    "output": [
+      "session_token"
+    ],
+    "base_url": "http://127.0.0.1:5000",
+    "name": "create user and check result."
+  },
+  "teststeps": [
+    {
+      "testcase": "testcases/setup.yml",
+      "extract": [
+        "session_token"
+      ],
+      "name": "setup and reset all (override) for $device_sn."
+    },
+    {
+      "testcase": "testcases/deps/check_and_create.yml",
+      "variables": {
+        "token": "$session_token"
+      },
+      "name": "create user and check result."
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/testcases/create_user.v2.yml b/tests/testcases/create_user.v2.yml
index 7f34c532..35541065 100644
--- a/tests/testcases/create_user.v2.yml
+++ b/tests/testcases/create_user.v2.yml
@@ -12,9 +12,8 @@ teststeps:
 -
     name: setup and reset all (override) for $device_sn.
     testcase: testcases/setup.yml
-    output:
+    extract:
         - session_token
-
 -
     name: create user and check result.
     variables:
diff --git a/tests/testcases/create_user.yml b/tests/testcases/create_user.yml
index a09160cc..7b830f6c 100644
--- a/tests/testcases/create_user.yml
+++ b/tests/testcases/create_user.yml
@@ -12,7 +12,7 @@
 - test:
     name: setup and reset all (override) for $device_sn.
     testcase: testcases/setup.yml
-    output:
+    extract:
         - session_token
 
 - test: