diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 0cde284c..e7674ab8 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__ = '1.5.7'
+__version__ = '1.5.8'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/context.py b/httprunner/context.py
index 6db20418..c8fabf67 100644
--- a/httprunner/context.py
+++ b/httprunner/context.py
@@ -45,9 +45,6 @@ class Context(object):
         if level == "testset":
             self.testcase_parser.file_path = config_dict.get("path", None)
 
-        function_binds = config_dict.get('function_binds', {})
-        self.bind_functions(function_binds, level)
-
         variables = config_dict.get('variables') \
             or config_dict.get('variable_binds', OrderedDict())
         self.bind_variables(variables, level)
diff --git a/httprunner/runner.py b/httprunner/runner.py
index fd67fb6c..fd0cced9 100644
--- a/httprunner/runner.py
+++ b/httprunner/runner.py
@@ -36,7 +36,6 @@ class Runner(object):
             {
                 "name": "smoke testset",
                 "path": "tests/data/demo_testset_variables.yml",
-                "function_binds": {},   # optional
                 "variables": [],   # optional
                 "request": {
                     "base_url": "http://127.0.0.1:5000",
@@ -48,7 +47,6 @@ class Runner(object):
         testcase:
             {
                 "name": "testcase description",
-                "function_binds": {},   # optional
                 "variables": [],   # optional
                 "request": {
                     "url": "/api/get-token",
@@ -113,7 +111,6 @@ class Runner(object):
                 "name": "testcase description",
                 "skip": "skip this test unconditionally",
                 "times": 3,
-                "function_binds": {},   # optional, override
                 "variables": [],        # optional, override
                 "request": {
                     "url": "http://127.0.0.1:5000/api/users/1000",
diff --git a/httprunner/task.py b/httprunner/task.py
index 45c46112..6e2f528c 100644
--- a/httprunner/task.py
+++ b/httprunner/task.py
@@ -43,7 +43,6 @@ class TestSuite(unittest.TestSuite):
                 "name": "testset description",
                 "config": {
                     "name": "testset description",
-                    "function_binds": {},
                     "parameters": {},
                     "variables": [],
                     "request": {},
diff --git a/tests/data/demo_binds.yml b/tests/data/demo_binds.yml
index 2444ec2f..17fbff68 100644
--- a/tests/data/demo_binds.yml
+++ b/tests/data/demo_binds.yml
@@ -3,14 +3,6 @@ bind_variables:
         - TOKEN: "debugtalk"
         - token: $TOKEN
 
-bind_lambda_functions:
-    function_binds:
-        add_one: "lambda x: x + 1"
-        add_two_nums: "lambda x, y: x + y"
-    variables:
-        - add1: ${add_one(2)}
-        - sum2nums: ${add_two_nums(2, 3)}
-
 builtin_functions:
     variables:
         - length: ${len(debugtalk)}
diff --git a/tests/test_context.py b/tests/test_context.py
index 53d394a6..3c7383a2 100644
--- a/tests/test_context.py
+++ b/tests/test_context.py
@@ -76,30 +76,22 @@ class VariableBindsUnittest(ApiServerUnittest):
             self.assertEqual(testcase_variables["token"], "debugtalk")
 
     def test_context_bind_lambda_functions(self):
-        testcase1 = {
-            "function_binds": {
-                "add_one": lambda x: x + 1,
-                "add_two_nums": lambda x, y: x + y
-            },
-            "variables": [
-                {"add1": "${add_one(2)}"},
-                {"sum2nums": "${add_two_nums(2,3)}"}
-            ]
+        function_binds = {
+            "add_one": lambda x: x + 1,
+            "add_two_nums": lambda x, y: x + y
         }
-        testcase2 = self.testcases["bind_lambda_functions"]
+        variables = [
+            {"add1": "${add_one(2)}"},
+            {"sum2nums": "${add_two_nums(2,3)}"}
+        ]
+        self.context.bind_functions(function_binds)
+        self.context.bind_variables(variables)
 
-        for testcase in [testcase1, testcase2]:
-            function_binds = testcase.get('function_binds', {})
-            self.context.bind_functions(function_binds)
-
-            variables = testcase['variables']
-            self.context.bind_variables(variables)
-
-            context_variables = self.context.testcase_variables_mapping
-            self.assertIn("add1", context_variables)
-            self.assertEqual(context_variables["add1"], 3)
-            self.assertIn("sum2nums", context_variables)
-            self.assertEqual(context_variables["sum2nums"], 5)
+        context_variables = self.context.testcase_variables_mapping
+        self.assertIn("add1", context_variables)
+        self.assertEqual(context_variables["add1"], 3)
+        self.assertIn("sum2nums", context_variables)
+        self.assertEqual(context_variables["sum2nums"], 5)
 
     def test_call_builtin_functions(self):
         testcase1 = {