diff --git a/nonebot/plugin.py b/nonebot/plugin.py
index d3db0631..736a34cf 100644
--- a/nonebot/plugin.py
+++ b/nonebot/plugin.py
@@ -242,17 +242,17 @@ def get_loaded_plugins() -> Set[Plugin]:
 
 class CommandGroup:
 
-    def __init__(self, name: Union[str, Tuple[str, ...]], **kwargs):
-        self.basename = (name,) if isinstance(name, str) else name
+    def __init__(self, cmd: Union[str, Tuple[str, ...]], **kwargs):
+        self.basecmd = (cmd,) if isinstance(cmd, str) else cmd
         if "aliases" in kwargs:
             del kwargs["aliases"]
         self.base_kwargs = kwargs
 
-    def command(self, name: Union[str, Tuple[str, ...]],
+    def command(self, cmd: Union[str, Tuple[str, ...]],
                 **kwargs) -> Union[Type[Matcher], MatcherGroup]:
-        sub_name = (name,) if isinstance(name, str) else name
-        name = self.basename + sub_name
+        sub_cmd = (cmd,) if isinstance(cmd, str) else cmd
+        cmd = self.basecmd + sub_cmd
 
         final_kwargs = self.base_kwargs.copy()
         final_kwargs.update(kwargs)
-        return on_command(name, **final_kwargs)
+        return on_command(cmd, **final_kwargs)
diff --git a/nonebot/plugin.pyi b/nonebot/plugin.pyi
new file mode 100644
index 00000000..cd737363
--- /dev/null
+++ b/nonebot/plugin.pyi
@@ -0,0 +1,165 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import re
+
+from nonebot.typing import Rule, Matcher, Handler, Permission, RuleChecker, MatcherGroup
+from nonebot.typing import Set, List, Dict, Type, Tuple, Union, Optional, ModuleType
+
+plugins: Dict[str, "Plugin"] = ...
+
+_tmp_matchers: Set[Type[Matcher]] = ...
+
+
+class Plugin(object):
+    name: str
+    module: ModuleType
+    matcher: Set[Type[Matcher]]
+
+
+def on(rule: Optional[Union[Rule, RuleChecker]] = None,
+       permission: Optional[Permission] = None,
+       *,
+       handlers: Optional[List[Handler]] = None,
+       temp: bool = False,
+       priority: int = 1,
+       block: bool = False,
+       state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_metaevent(rule: Optional[Union[Rule, RuleChecker]] = None,
+                 *,
+                 handlers: Optional[List[Handler]] = None,
+                 temp: bool = False,
+                 priority: int = 1,
+                 block: bool = False,
+                 state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_message(rule: Optional[Union[Rule, RuleChecker]] = None,
+               permission: Optional[Permission] = None,
+               *,
+               handlers: Optional[List[Handler]] = None,
+               temp: bool = False,
+               priority: int = 1,
+               block: bool = True,
+               state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_notice(rule: Optional[Union[Rule, RuleChecker]] = None,
+              *,
+              handlers: Optional[List[Handler]] = None,
+              temp: bool = False,
+              priority: int = 1,
+              block: bool = False,
+              state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_request(rule: Optional[Union[Rule, RuleChecker]] = None,
+               *,
+               handlers: Optional[List[Handler]] = None,
+               temp: bool = False,
+               priority: int = 1,
+               block: bool = False,
+               state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_startswith(msg: str,
+                  rule: Optional[Optional[Union[Rule, RuleChecker]]] = None,
+                  permission: Optional[Permission] = None,
+                  *,
+                  handlers: Optional[List[Handler]] = None,
+                  temp: bool = False,
+                  priority: int = 1,
+                  block: bool = True,
+                  state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_endswith(msg: str,
+                rule: Optional[Optional[Union[Rule, RuleChecker]]] = None,
+                permission: Optional[Permission] = None,
+                *,
+                handlers: Optional[List[Handler]] = None,
+                temp: bool = False,
+                priority: int = 1,
+                block: bool = True,
+                state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def on_command(
+        cmd: Union[str, Tuple[str, ...]],
+        rule: Optional[Union[Rule, RuleChecker]] = None,
+        aliases: Set[Union[str, Tuple[str, ...]]] = None,
+        permission: Optional[Permission] = None,
+        *,
+        handlers: Optional[List[Handler]] = None,
+        temp: bool = False,
+        priority: int = 1,
+        block: bool = True,
+        state: Optional[dict] = None) -> Union[Type[Matcher], MatcherGroup]:
+    ...
+
+
+def on_regex(pattern: str,
+             flags: Union[int, re.RegexFlag] = 0,
+             rule: Optional[Rule] = None,
+             permission: Optional[Permission] = None,
+             *,
+             handlers: Optional[List[Handler]] = None,
+             temp: bool = False,
+             priority: int = 1,
+             block: bool = True,
+             state: Optional[dict] = None) -> Type[Matcher]:
+    ...
+
+
+def load_plugin(module_path: str) -> Optional[Plugin]:
+    ...
+
+
+def load_plugins(*plugin_dir: str) -> Set[Plugin]:
+    ...
+
+
+def load_builtin_plugins():
+    ...
+
+
+def get_loaded_plugins() -> Set[Plugin]:
+    ...
+
+
+class CommandGroup:
+
+    def __init__(self,
+                 cmd: Union[str, Tuple[str, ...]],
+                 rule: Optional[Union[Rule, RuleChecker]] = None,
+                 permission: Optional[Permission] = None,
+                 *,
+                 handlers: Optional[List[Handler]] = None,
+                 temp: bool = False,
+                 priority: int = 1,
+                 block: bool = True,
+                 state: Optional[dict] = None):
+        ...
+
+    def command(
+            self,
+            cmd: Union[str, Tuple[str, ...]],
+            rule: Optional[Union[Rule, RuleChecker]] = None,
+            aliases: Set[Union[str, Tuple[str, ...]]] = None,
+            permission: Optional[Permission] = None,
+            *,
+            handlers: Optional[List[Handler]] = None,
+            temp: bool = False,
+            priority: int = 1,
+            block: bool = True,
+            state: Optional[dict] = None) -> Union[Type[Matcher], MatcherGroup]:
+        ...
diff --git a/nonebot/typing.py b/nonebot/typing.py
index 51834a08..5b722655 100644
--- a/nonebot/typing.py
+++ b/nonebot/typing.py
@@ -28,10 +28,10 @@ from typing import Union, TypeVar, Optional, Iterable, Callable, Awaitable
 # import some modules needed when checking types
 if TYPE_CHECKING:
     from nonebot.rule import Rule as RuleClass
-    from nonebot.matcher import Matcher as MatcherClass
     from nonebot.drivers import BaseDriver, BaseWebSocket
     from nonebot.permission import Permission as PermissionClass
     from nonebot.adapters import BaseBot, BaseEvent, BaseMessage, BaseMessageSegment
+    from nonebot.matcher import Matcher as MatcherClass, MatcherGroup as MatcherGroupClass
 
 
 def overrides(InterfaceClass: object):
@@ -112,6 +112,14 @@ Matcher = TypeVar("Matcher", bound="MatcherClass")
 
   Matcher 即响应事件的处理类。通过 Rule 判断是否响应事件，运行 Handler。
 """
+MatcherGroup = TypeVar("MatcherGroup", bound="MatcherGroupClass")
+"""
+:类型: ``MatcherGroup``
+
+:说明:
+
+  MatcherGroup 为 Matcher 的集合。可以共享 Handler。
+"""
 Rule = TypeVar("Rule", bound="RuleClass")
 """
 :类型: ``Rule``