diff --git a/nonebot/adapters/__init__.py b/nonebot/adapters/__init__.py
index 1ec65fa7..f02ceae6 100644
--- a/nonebot/adapters/__init__.py
+++ b/nonebot/adapters/__init__.py
@@ -4,6 +4,7 @@
 import abc
 from functools import reduce
 from dataclasses import dataclass, field
+from nonebot.rule import notice
 
 from nonebot.config import Config
 from nonebot.typing import Dict, Union, Iterable, WebSocket
@@ -37,6 +38,46 @@ class BaseBot(abc.ABC):
         raise NotImplementedError
 
 
+class BaseEvent(abc.ABC):
+
+    def __init__(self, raw_event: dict):
+        self._raw_event = raw_event
+
+    def __repr__(self) -> str:
+        # TODO: pretty print
+        return f"<Event: >"
+
+    @property
+    @abc.abstractmethod
+    def type(self):
+        raise NotImplementedError
+
+    @type.setter
+    @abc.abstractmethod
+    def type(self, value):
+        raise NotImplementedError
+
+    @property
+    @abc.abstractmethod
+    def detail_type(self):
+        raise NotImplementedError
+
+    @detail_type.setter
+    @abc.abstractmethod
+    def detail_type(self, value):
+        raise NotImplementedError
+
+    @property
+    @abc.abstractmethod
+    def sub_type(self):
+        raise NotImplementedError
+
+    @sub_type.setter
+    @abc.abstractmethod
+    def sub_type(self, value):
+        raise NotImplementedError
+
+
 @dataclass
 class BaseMessageSegment(abc.ABC):
     type: str
@@ -51,50 +92,6 @@ class BaseMessageSegment(abc.ABC):
         raise NotImplementedError
 
 
-# class BaseMessageSegment(dict):
-
-#     def __init__(self,
-#                  type_: Optional[str] = None,
-#                  data: Optional[Dict[str, str]] = None):
-#         super().__init__()
-#         if type_:
-#             self.type = type_
-#             self.data = data
-#         else:
-#             raise ValueError('The "type" field cannot be empty')
-
-#     def __str__(self):
-#         raise NotImplementedError
-
-#     def __getitem__(self, item):
-#         if item not in ("type", "data"):
-#             raise KeyError(f'Key "{item}" is not allowed')
-#         return super().__getitem__(item)
-
-#     def __setitem__(self, key, value):
-#         if key not in ("type", "data"):
-#             raise KeyError(f'Key "{key}" is not allowed')
-#         return super().__setitem__(key, value)
-
-#     # TODO: __eq__ __add__
-
-#     @property
-#     def type(self) -> str:
-#         return self["type"]
-
-#     @type.setter
-#     def type(self, value: str):
-#         self["type"] = value
-
-#     @property
-#     def data(self) -> Dict[str, str]:
-#         return self["data"]
-
-#     @data.setter
-#     def data(self, data: Optional[Dict[str, str]]):
-#         self["data"] = data or {}
-
-
 class BaseMessage(list, abc.ABC):
 
     def __init__(self,
diff --git a/nonebot/adapters/cqhttp.py b/nonebot/adapters/cqhttp.py
index 1d69ce52..0b8683fd 100644
--- a/nonebot/adapters/cqhttp.py
+++ b/nonebot/adapters/cqhttp.py
@@ -5,12 +5,12 @@ import re
 
 import httpx
 
-from nonebot.event import Event
+# from nonebot.event import Event
 from nonebot.config import Config
 from nonebot.message import handle_event
 from nonebot.exception import ApiNotAvailable
-from nonebot.adapters import BaseBot, BaseMessage, BaseMessageSegment
 from nonebot.typing import Tuple, Iterable, Optional, overrides, WebSocket
+from nonebot.adapters import BaseBot, BaseEvent, BaseMessage, BaseMessageSegment
 
 
 def escape(s: str, *, escape_comma: bool = True) -> str:
@@ -60,13 +60,13 @@ class Bot(BaseBot):
     @overrides(BaseBot)
     async def handle_message(self, message: dict):
         # TODO: convert message into event
-        event = Event.from_payload(message)
+        event = Event(message)
 
         if not event:
             return
 
-        if "message" in event.keys():
-            event["message"] = Message(event["message"])
+        # if "message" in event.keys():
+        #     event["message"] = Message(event["message"])
 
         await handle_event(self, event)
 
@@ -96,6 +96,39 @@ class Bot(BaseBot):
                 "<HttpFailed {0.status_code} for url: {0.url}>", response)
 
 
+class Event(BaseEvent):
+
+    @property
+    @overrides(BaseEvent)
+    def type(self):
+        return self._raw_event["post_type"]
+
+    @type.setter
+    @overrides(BaseEvent)
+    def type(self, value):
+        self._raw_event["post_type"] = value
+
+    @property
+    @overrides(BaseEvent)
+    def detail_type(self):
+        return self._raw_event[f"{self.type}_type"]
+
+    @detail_type.setter
+    @overrides(BaseEvent)
+    def detail_type(self, value):
+        self._raw_event[f"{self.type}_type"] = value
+
+    @property
+    @overrides(BaseEvent)
+    def sub_type(self):
+        return self._raw_event["sub_type"]
+
+    @type.setter
+    @overrides(BaseEvent)
+    def sub_type(self, value):
+        self._raw_event["sub_type"] = value
+
+
 class MessageSegment(BaseMessageSegment):
 
     @overrides(BaseMessageSegment)
diff --git a/nonebot/typing.py b/nonebot/typing.py
index 72a628f0..f3f6ec0e 100644
--- a/nonebot/typing.py
+++ b/nonebot/typing.py
@@ -8,10 +8,9 @@ from typing import Union, TypeVar, Optional, Iterable, Callable, Awaitable
 
 # import some modules needed when checking types
 if TYPE_CHECKING:
-    from nonebot.event import Event as EventClass
     from nonebot.matcher import Matcher as MatcherClass
     from nonebot.drivers import BaseDriver, BaseWebSocket
-    from nonebot.adapters import BaseBot, BaseMessage, BaseMessageSegment
+    from nonebot.adapters import BaseBot, BaseEvent, BaseMessage, BaseMessageSegment
 
 
 def overrides(InterfaceClass: object):
@@ -28,7 +27,7 @@ Driver = TypeVar("Driver", bound="BaseDriver")
 WebSocket = TypeVar("WebSocket", bound="BaseWebSocket")
 
 Bot = TypeVar("Bot", bound="BaseBot")
-Event = TypeVar("Event", bound="EventClass")
+Event = TypeVar("Event", bound="BaseEvent")
 Message = TypeVar("Message", bound="BaseMessage")
 MessageSegment = TypeVar("MessageSegment", bound="BaseMessageSegment")