diff --git a/python/PyCGraph.cpp b/python/PyCGraph.cpp
index cd4ad7e6..8886abaf 100644
--- a/python/PyCGraph.cpp
+++ b/python/PyCGraph.cpp
@@ -163,7 +163,15 @@ PYBIND11_MODULE(pycgraph, cg) {
         .def("unlock", &GParam::unlock,
              py::call_guard<py::gil_scoped_release>())
         .def("tryLock", &GParam::tryLock,
-             py::call_guard<py::gil_scoped_release>());
+             py::call_guard<py::gil_scoped_release>())
+        .def("__enter__", [](GParam& self) -> GParam& {
+                self.lock();
+                return self;
+            }, py::call_guard<py::gil_scoped_release>(), py::return_value_policy::reference_internal)
+        .def("__exit__", [](GParam& self, py::object, py::object, py::object) {
+                self.unlock();
+                return false;
+            }, py::call_guard<py::gil_scoped_release>());
 
     py::class_<GPassedParam, PywGPassedParam, std::unique_ptr<GPassedParam, py::nodelete> >(cg, "GPassedParam")
         .def(py::init<>());
diff --git a/python/tutorial/MyGNode/MyReadParamNode.py b/python/tutorial/MyGNode/MyReadParamNode.py
index cc313c93..5c8ba10b 100644
--- a/python/tutorial/MyGNode/MyReadParamNode.py
+++ b/python/tutorial/MyGNode/MyReadParamNode.py
@@ -13,8 +13,12 @@
 
 class MyReadParamNode(GNode):
     def run(self):
-        param = self.getGParamWithNoEmpty("param1")
-        param.lock()
-        print('[{0}] value is {1}, count is {2}'.format(self.getName(), param.value, param.count))
-        param.unlock()
+        param: MyParam = self.getGParamWithNoEmpty("param1")
+
+        # use `with param:` as same as:
+        # param.lock()
+        # print('[{0}] value is {1}, count is {2}'.format(self.getName(), param.value, param.count))
+        # param.unlock()
+        with param:
+            print('[{0}] value is {1}, count is {2}'.format(self.getName(), param.value, param.count))
         return CStatus()
diff --git a/python/tutorial/MyGNode/MyWriteParamNode.py b/python/tutorial/MyGNode/MyWriteParamNode.py
index f4fae1ed..28e9311b 100644
--- a/python/tutorial/MyGNode/MyWriteParamNode.py
+++ b/python/tutorial/MyGNode/MyWriteParamNode.py
@@ -16,10 +16,10 @@ def init(self):
 
     def run(self):
         param: MyParam = self.getGParam("param1")
-
-        param.lock()
-        param.count += 1
-        param.value += 1
-        print('[{0}] value is {1}, count is {2}'.format(self.getName(), param.value, param.count))
-        param.unlock()
+        with param:
+            # user `with param` to enter thread safe area for param's info change
+            # as same as param.lock() and param.unlock()
+            param.count += 1
+            param.value += 1
+            print('[{0}] value is {1}, count is {2}'.format(self.getName(), param.value, param.count))
         return CStatus()