diff --git a/fastNLP/core/callbacks/callback_manager.py b/fastNLP/core/callbacks/callback_manager.py
index 9ead6024..7b04d8ad 100644
--- a/fastNLP/core/callbacks/callback_manager.py
+++ b/fastNLP/core/callbacks/callback_manager.py
@@ -127,11 +127,12 @@ class CallbackManager:
         :param callback: 一个具体的 callback 实例；
         """
         self.all_callbacks.append(callback)
-        for name, member in Event.__members__.items():
-            _fn = getattr(callback, member.value)
-            if inspect.getsource(_fn) != inspect.getsource(getattr(Callback, member.value)):
-                self.callback_fns[member.value].append(_fn)
-                self.extract_callback_filter_state(callback.callback_name, _fn)
+        for name, member in Event.__dict__.items():
+            if isinstance(member, staticmethod):
+                _fn = getattr(callback, name)
+                if inspect.getsource(_fn) != inspect.getsource(getattr(Callback, name)):
+                    self.callback_fns[name].append(_fn)
+                    self.extract_callback_filter_state(callback.callback_name, _fn)
 
     def extract_callback_filter_state(self, callback_name, callback_fn):
         r"""
diff --git a/tests/core/callbacks/test_callback_event.py b/tests/core/callbacks/test_callback_event.py
index 219ccafd..765c4432 100644
--- a/tests/core/callbacks/test_callback_event.py
+++ b/tests/core/callbacks/test_callback_event.py
@@ -6,42 +6,6 @@ from fastNLP.core.callbacks.callback_event import Event, Filter
 
 
 class TestFilter:
-    def test_params_check(self):
-        # 顺利通过
-        _filter1 = Filter(every=10)
-        _filter2 = Filter(once=10)
-        _filter3 = Filter(filter_fn=lambda: None)
-
-        # 触发 ValueError
-        with pytest.raises(ValueError) as e:
-            _filter4 = Filter()
-        exec_msg = e.value.args[0]
-        assert exec_msg == "If you mean your decorated function should be called every time, you do not need this filter."
-
-        # 触发 ValueError
-        with pytest.raises(ValueError) as e:
-            _filter5 = Filter(every=10, once=10)
-        exec_msg = e.value.args[0]
-        assert exec_msg == "These three values should be only set one."
-
-        # 触发 TypeError
-        with pytest.raises(ValueError) as e:
-            _filter6 = Filter(every="heihei")
-        exec_msg = e.value.args[0]
-        assert exec_msg == "Argument every should be integer and greater than zero"
-
-        # 触发 TypeError
-        with pytest.raises(ValueError) as e:
-            _filter7 = Filter(once="heihei")
-        exec_msg = e.value.args[0]
-        assert exec_msg == "Argument once should be integer and positive"
-
-        # 触发 TypeError
-        with pytest.raises(TypeError) as e:
-            _filter7 = Filter(filter_fn="heihei")
-        exec_msg = e.value.args[0]
-        assert exec_msg == "Argument event_filter should be a callable"
-
     def test_every_filter(self):
         # every = 10
         @Filter(every=10)