diff --git a/plugins/admin/post.py b/plugins/admin/post.py
index e278428..ba6af7a 100644
--- a/plugins/admin/post.py
+++ b/plugins/admin/post.py
@@ -3,7 +3,7 @@ import os
 import re
 from asyncio import create_subprocess_shell, subprocess
 from functools import partial
-from typing import List, Optional, Tuple, TYPE_CHECKING, Union, Dict
+from typing import List, Optional, Tuple, TYPE_CHECKING, Union
 
 import aiofiles
 from arkowrapper import ArkoWrapper
@@ -26,6 +26,7 @@ from telegram.helpers import escape_markdown
 from core.config import config
 from core.plugin import Plugin, conversation, handler
 from gram_core.basemodel import Settings
+from gram_core.dependence.redisdb import RedisDB
 from modules.apihelper.client.components.hoyolab import Hoyolab
 from modules.apihelper.client.components.hyperion import Hyperion, HyperionBase
 from modules.apihelper.error import APIHelperException
@@ -69,12 +70,28 @@ class Post(Plugin.Conversation):
         [["推送频道", "添加TAG"], ["编辑文字", "删除图片"], ["添加视频", "退出"]], True, True
     )
 
-    def __init__(self):
+    def __init__(self, redis: RedisDB):
         self.gids = 8
         self.short_name = "zzz"
-        self.last_post_id_list: Dict[PostTypeEnum, List[int]] = {PostTypeEnum.CN: [], PostTypeEnum.OS: []}
         self.ffmpeg_enable = False
         self.cache_dir = os.path.join(os.getcwd(), "cache")
+        self.cache = redis.client
+        self.cache_key = "plugin:post:pushed"
+
+    def get_cache_key(self, bbs_type: "PostTypeEnum") -> str:
+        return f"{self.cache_key}:{bbs_type.value}"
+
+    async def is_posted(self, bbs_type: "PostTypeEnum", post_id: int) -> bool:
+        key = self.get_cache_key(bbs_type)
+        return await self.cache.sismember(key, post_id)
+
+    async def set_posted(self, bbs_type: "PostTypeEnum", post_id: int) -> bool:
+        key = self.get_cache_key(bbs_type)
+        return await self.cache.sadd(key, post_id)
+
+    async def is_posted_empty(self, bbs_type: "PostTypeEnum") -> bool:
+        key = self.get_cache_key(bbs_type)
+        return await self.cache.scard(key) == 0
 
     @staticmethod
     def get_bbs_client(bbs_type: "PostTypeEnum") -> "HyperionBase":
@@ -106,7 +123,6 @@ class Post(Plugin.Conversation):
 
     async def task(self, context: "ContextTypes.DEFAULT_TYPE", post_type: "PostTypeEnum"):
         bbs = self.get_bbs_client(post_type)
-        temp_post_id_list: List[int] = []
 
         # 请求推荐POST列表并处理
         try:
@@ -115,24 +131,19 @@ class Post(Plugin.Conversation):
             logger.error("获取首页推荐信息失败 %s", str(exc))
             return
 
-        for data_list in official_recommended_posts:
-            temp_post_id_list.append(data_list.post_id)
+        temp_post_id_list = [post.post_id for post in official_recommended_posts]
 
-        last_post_id_list = self.last_post_id_list[post_type]
         # 判断是否为空
-        if len(last_post_id_list) == 0:
+        if self.is_posted_empty(post_type):
             for temp_list in temp_post_id_list:
-                last_post_id_list.append(temp_list)
+                await self.set_posted(post_type, temp_list)
             return
 
         # 筛选出新推送的文章
-        last_post_id_list = self.last_post_id_list[post_type]
-        new_post_id_list = set(temp_post_id_list).difference(set(last_post_id_list))
-
+        new_post_id_list = [post_id for post_id in temp_post_id_list if not await self.is_posted(post_type, post_id)]
         if not new_post_id_list:
             return
 
-        self.last_post_id_list[post_type] = temp_post_id_list
         chat_id = post_config.chat_id or config.owner
 
         for post_id in new_post_id_list:
@@ -163,6 +174,7 @@ class Post(Plugin.Conversation):
                     parse_mode=ParseMode.HTML,
                     reply_markup=InlineKeyboardMarkup(buttons),
                 )
+                await self.set_posted(post_type, post_id)
             except BadRequest as exc:
                 logger.error("发送消息失败 %s", exc.message)
         await bbs.close()