diff --git a/nonebot_bison/sub_manager/add_cookie.py b/nonebot_bison/sub_manager/add_cookie.py
index c10fc27..9ae36e3 100644
--- a/nonebot_bison/sub_manager/add_cookie.py
+++ b/nonebot_bison/sub_manager/add_cookie.py
@@ -55,8 +55,9 @@ def do_add_cookie(add_cookie: type[Matcher]):
     async def got_cookie(state: T_State, cookie: Message = Arg()):
         client_mgr: CookieClientManager = platform_manager[state["platform"]].site.client_mgr
         cookie_text = cookie.extract_plain_text()
+        if not await client_mgr.valid_cookie(cookie_text):
+            await add_cookie.reject("无效的 Cookie，请检查后重新输入，详情见<待添加的文档>")
         state["cookie"] = cookie_text
-        state["name"] = await client_mgr.valid_cookie(cookie_text)
 
     @add_cookie.handle()
     async def add_cookie_process(state: T_State):
diff --git a/nonebot_bison/utils/site.py b/nonebot_bison/utils/site.py
index e241f49..4aeb8de 100644
--- a/nonebot_bison/utils/site.py
+++ b/nonebot_bison/utils/site.py
@@ -1,5 +1,6 @@
 import json
 from typing import Literal
+from json import JSONDecodeError
 from abc import ABC, abstractmethod
 from datetime import datetime, timedelta
 
@@ -61,30 +62,31 @@ class CookieClientManager(ClientManager):
 
     @classmethod
     async def init_cookie(cls, cookie: Cookie) -> Cookie:
-        """初始化cookie，添加用户cookie时使用"""
+        """初始化 cookie，添加用户 cookie 时使用"""
         cookie.cd = cls._cookie_cd
+        cookie.last_usage = datetime.now()  # 使得优先使用用户 cookie
         return cookie
 
     @classmethod
     async def valid_cookie(cls, content: str) -> bool:
-        """验证cookie是否有效，添加cookie时考用，可根据平台的具体情况进行重写"""
+        """验证 cookie 内容是否有效，添加 cookie 时用，可根据平台的具体情况进行重写"""
         try:
             data = json.loads(content)
             if not isinstance(data, dict):
-                raise ValueError
-        except Exception:
+                return False
+        except JSONDecodeError:
             return False
         return True
 
     @classmethod
     async def get_cookie_friendly_name(cls, cookie: Cookie) -> str:
-        """获取友好的cookie名字，用于展示"""
+        """获取 cookie 的友好名字，用于展示"""
         from . import text_fletten
 
         return text_fletten(f"{cookie.platform_name} [{cookie.content[:10]}]")
 
     def _generate_hook(self, cookie: Cookie):
-        """hook函数生成器，用于回写请求状态到数据库"""
+        """hook 函数生成器，用于回写请求状态到数据库"""
 
         async def _response_hook(resp: httpx.Response):
             if resp.status_code == 200: