diff --git a/api/routers.py b/api/routers.py
index 8e290b5..fb311a5 100644
--- a/api/routers.py
+++ b/api/routers.py
@@ -6,6 +6,7 @@ from domain.backup import api as backup
 from domain.config import api as config
 from domain.email import api as email
 from domain.offline_downloads import api as offline_downloads
+from domain.notices import api as notices
 from domain.plugins import api as plugins
 from domain.processors import api as processors
 from domain.share import api as share
@@ -41,6 +42,7 @@ def include_routers(app: FastAPI):
     app.include_router(webdav_api.router)
     app.include_router(s3_api.router)
     app.include_router(offline_downloads.router)
+    app.include_router(notices.router)
     app.include_router(email.router)
     app.include_router(audit.router)
     app.include_router(permission.router)
diff --git a/domain/notices/__init__.py b/domain/notices/__init__.py
new file mode 100644
index 0000000..0f8bcf1
--- /dev/null
+++ b/domain/notices/__init__.py
@@ -0,0 +1,3 @@
+from .service import NoticeService, notice_sync_service
+
+__all__ = ["NoticeService", "notice_sync_service"]
diff --git a/domain/notices/api.py b/domain/notices/api.py
new file mode 100644
index 0000000..a3c927b
--- /dev/null
+++ b/domain/notices/api.py
@@ -0,0 +1,36 @@
+from typing import Annotated
+
+from fastapi import APIRouter, Depends, Query
+
+from api.response import success
+from domain.auth import User, get_current_active_user
+
+from .service import NoticeService
+
+router = APIRouter(prefix="/api/notices", tags=["notices"])
+
+
+@router.get("")
+async def list_notices(
+    current_user: Annotated[User, Depends(get_current_active_user)],
+    page: int = Query(1, ge=1),
+):
+    data = await NoticeService.list_notices(page=page)
+    return data.model_dump()
+
+
+@router.get("/popup")
+async def get_popup_notice(
+    current_user: Annotated[User, Depends(get_current_active_user)],
+):
+    item = await NoticeService.get_popup_notice()
+    return success(item.model_dump() if item else None)
+
+
+@router.post("/{notice_id}/dismiss")
+async def dismiss_popup_notice(
+    notice_id: int,
+    current_user: Annotated[User, Depends(get_current_active_user)],
+):
+    await NoticeService.dismiss_popup(notice_id)
+    return success()
diff --git a/domain/notices/service.py b/domain/notices/service.py
new file mode 100644
index 0000000..f27525b
--- /dev/null
+++ b/domain/notices/service.py
@@ -0,0 +1,177 @@
+import asyncio
+import logging
+from datetime import datetime, timezone
+from typing import Any
+
+import httpx
+
+from domain.config import VERSION
+from models.database import Notice
+
+from .types import NoticeItem, NoticeListResponse
+
+logger = logging.getLogger(__name__)
+
+REMOTE_NOTICES_URL = "https://foxel.cc/api/notices"
+SYNC_INTERVAL_SECONDS = 60 * 60 * 24
+PAGE_SIZE = 20
+
+
+def _normalize_version(version: str) -> str:
+    return (version or "").strip().removeprefix("v").removeprefix("V")
+
+
+def _parse_remote_time(value: Any) -> datetime:
+    if isinstance(value, (int, float)):
+        timestamp = float(value)
+        if timestamp > 10_000_000_000:
+            timestamp = timestamp / 1000
+        return datetime.fromtimestamp(timestamp, timezone.utc)
+    if isinstance(value, str):
+        text = value.strip()
+        if not text:
+            return datetime.now(timezone.utc)
+        try:
+            if text.isdigit():
+                return _parse_remote_time(int(text))
+            return datetime.fromisoformat(text.replace("Z", "+00:00"))
+        except ValueError:
+            return datetime.now(timezone.utc)
+    return datetime.now(timezone.utc)
+
+
+class NoticeService:
+    @classmethod
+    async def list_notices(cls, page: int = 1, page_size: int = PAGE_SIZE) -> NoticeListResponse:
+        page = max(1, page)
+        page_size = max(1, min(page_size, 100))
+        query = Notice.all().order_by("-created_at", "-id")
+        total = await query.count()
+        notices = await query.offset((page - 1) * page_size).limit(page_size)
+        return NoticeListResponse(
+            items=[cls._to_item(item) for item in notices],
+            page=page,
+            pageSize=page_size,
+            total=total,
+        )
+
+    @classmethod
+    async def get_popup_notice(cls) -> NoticeItem | None:
+        notice = await Notice.filter(is_popup=True, popup_dismissed=False).order_by("-created_at", "-id").first()
+        if not notice:
+            return None
+        return cls._to_item(notice)
+
+    @classmethod
+    async def dismiss_popup(cls, notice_id: int) -> None:
+        await Notice.filter(id=notice_id).update(popup_dismissed=True, is_popup=False)
+
+    @classmethod
+    async def sync_remote_notices(cls) -> None:
+        items = await cls._fetch_remote_notices()
+        if not items:
+            return
+
+        popup_remote_ids: list[int] = []
+        for raw in items:
+            remote_id = raw.get("id")
+            if remote_id is None:
+                continue
+            try:
+                remote_id = int(remote_id)
+            except (TypeError, ValueError):
+                continue
+
+            is_popup = bool(raw.get("isPopup"))
+            if is_popup:
+                popup_remote_ids.append(remote_id)
+
+            notice = await Notice.get_or_none(remote_id=remote_id)
+            popup_dismissed = notice.popup_dismissed if notice else False
+            await Notice.update_or_create(
+                remote_id=remote_id,
+                defaults={
+                    "title": str(raw.get("title") or "")[:255],
+                    "content_md": str(raw.get("contentMd") or ""),
+                    "is_popup": is_popup and not popup_dismissed,
+                    "created_at": _parse_remote_time(raw.get("createdAt")),
+                },
+            )
+
+        await cls._keep_only_latest_popup(popup_remote_ids)
+
+    @classmethod
+    async def _keep_only_latest_popup(cls, popup_remote_ids: list[int]) -> None:
+        latest = await Notice.filter(remote_id__in=popup_remote_ids, popup_dismissed=False).order_by(
+            "-created_at", "-id"
+        ).first()
+        if not latest:
+            return
+        await Notice.filter(is_popup=True).exclude(id=latest.id).update(is_popup=False)
+
+    @classmethod
+    async def _fetch_remote_notices(cls) -> list[dict[str, Any]]:
+        results: list[dict[str, Any]] = []
+        page = 1
+        async with httpx.AsyncClient(timeout=15.0, follow_redirects=True) as client:
+            while True:
+                resp = await client.get(
+                    REMOTE_NOTICES_URL,
+                    params={"version": _normalize_version(VERSION), "page": page},
+                )
+                resp.raise_for_status()
+                data = resp.json()
+                items = data.get("items") if isinstance(data, dict) else None
+                if not isinstance(items, list):
+                    break
+                results.extend(item for item in items if isinstance(item, dict))
+
+                total = data.get("total", len(results)) if isinstance(data, dict) else len(results)
+                page_size = data.get("pageSize") or data.get("page_size") or len(items)
+                if not items or len(results) >= int(total or 0) or page_size <= 0:
+                    break
+                page += 1
+        return results
+
+    @staticmethod
+    def _to_item(notice: Notice) -> NoticeItem:
+        return NoticeItem(
+            id=notice.id,
+            title=notice.title,
+            contentMd=notice.content_md or "",
+            isPopup=notice.is_popup and not notice.popup_dismissed,
+            createdAt=int(notice.created_at.timestamp() * 1000),
+        )
+
+
+class NoticeSyncService:
+    def __init__(self):
+        self._worker: asyncio.Task | None = None
+        self._stop_event = asyncio.Event()
+
+    async def start(self) -> None:
+        if self._worker and not self._worker.done():
+            return
+        self._stop_event.clear()
+        self._worker = asyncio.create_task(self._run_loop())
+
+    async def stop(self) -> None:
+        if not self._worker:
+            return
+        self._stop_event.set()
+        await self._worker
+        self._worker = None
+
+    async def _run_loop(self) -> None:
+        while not self._stop_event.is_set():
+            try:
+                await NoticeService.sync_remote_notices()
+            except Exception:
+                logger.exception("Failed to sync notices")
+            try:
+                await asyncio.wait_for(self._stop_event.wait(), timeout=SYNC_INTERVAL_SECONDS)
+            except asyncio.TimeoutError:
+                pass
+
+
+notice_sync_service = NoticeSyncService()
diff --git a/domain/notices/types.py b/domain/notices/types.py
new file mode 100644
index 0000000..fe44f09
--- /dev/null
+++ b/domain/notices/types.py
@@ -0,0 +1,16 @@
+from pydantic import BaseModel
+
+
+class NoticeItem(BaseModel):
+    id: int
+    title: str
+    contentMd: str
+    isPopup: bool
+    createdAt: int
+
+
+class NoticeListResponse(BaseModel):
+    items: list[NoticeItem]
+    page: int
+    pageSize: int
+    total: int
diff --git a/main.py b/main.py
index 1b84210..3f980ae 100644
--- a/main.py
+++ b/main.py
@@ -23,6 +23,7 @@ import httpx
 from dotenv import load_dotenv
 from domain.tasks import task_queue_service, task_scheduler
 from domain.role.service import RoleService
+from domain.notices import notice_sync_service
 
 load_dotenv()
 
@@ -77,6 +78,7 @@ async def lifespan(app: FastAPI):
     from domain.plugins import init_plugins
     await init_plugins(app)
     await task_scheduler.start()
+    await notice_sync_service.start()
 
     # 在所有路由加载完成后，挂载静态文件服务（放在最后以避免覆盖 API 路由）
     app.mount("/", SPAStaticFiles(directory="web/dist", html=True, check_dir=False), name="static")
@@ -85,6 +87,7 @@ async def lifespan(app: FastAPI):
         try:
             yield
         finally:
+            await notice_sync_service.stop()
             await task_scheduler.stop()
             await task_queue_service.stop_worker()
             await close_db()
diff --git a/models/database.py b/models/database.py
index e03e92b..cc4876b 100644
--- a/models/database.py
+++ b/models/database.py
@@ -247,6 +247,20 @@ class RecentFile(Model):
         unique_together = (("user", "path"),)
 
 
+class Notice(Model):
+    id = fields.IntField(pk=True)
+    remote_id = fields.IntField(unique=True, index=True)
+    title = fields.CharField(max_length=255)
+    content_md = fields.TextField(null=True)
+    is_popup = fields.BooleanField(default=False)
+    popup_dismissed = fields.BooleanField(default=False)
+    created_at = fields.DatetimeField()
+    updated_at = fields.DatetimeField(auto_now=True)
+
+    class Meta:
+        table = "notices"
+
+
 class Plugin(Model):
     id = fields.IntField(pk=True)
     key = fields.CharField(max_length=100, unique=True)  # 插件唯一标识
diff --git a/web/src/api/notices.ts b/web/src/api/notices.ts
index 0c85145..c57cada 100644
--- a/web/src/api/notices.ts
+++ b/web/src/api/notices.ts
@@ -1,3 +1,5 @@
+import request from './client';
+
 export interface NoticeItem {
   id: number;
   title: string;
@@ -14,42 +16,17 @@ export interface GetNoticesResponse {
 }
 
 export interface GetNoticesParams {
-  version: string;
   page?: number;
 }
 
-const FOXEL_CORE_BASE = 'https://foxel.cc';
-
-function normalizeVersion(version: string) {
-  return (version || '').trim().replace(/^v/i, '');
-}
-
-function extractErrorMessage(data: any) {
-  if (!data) return '';
-  if (typeof data === 'string') return data;
-  if (typeof data.detail === 'string') return data.detail;
-  if (typeof data.code === 'string') return data.code;
-  if (typeof data.message === 'string') return data.message;
-  if (typeof data.msg === 'string') return data.msg;
-  return '';
-}
-
 export const noticesApi = {
   list: async (params: GetNoticesParams): Promise<GetNoticesResponse> => {
-    const url = new URL('/api/notices', FOXEL_CORE_BASE);
-    url.searchParams.set('version', normalizeVersion(params.version));
-    url.searchParams.set('page', String(params.page ?? 1));
-
-    const resp = await fetch(url.href);
-    if (!resp.ok) {
-      let msg = resp.statusText || `Request failed: ${resp.status}`;
-      try {
-        const data = await resp.json();
-        msg = extractErrorMessage(data) || msg;
-      } catch { void 0; }
-      throw new Error(msg);
-    }
-    return await resp.json();
+    return await request<GetNoticesResponse>(`/notices?page=${params.page ?? 1}`);
+  },
+  getPopup: async (): Promise<NoticeItem | null> => {
+    return await request<NoticeItem | null>('/notices/popup');
+  },
+  dismiss: async (id: number): Promise<void> => {
+    await request(`/notices/${id}/dismiss`, { method: 'POST' });
   },
 };
-
diff --git a/web/src/components/NoticesModal.tsx b/web/src/components/NoticesModal.tsx
index 35ed72c..a8b70f2 100644
--- a/web/src/components/NoticesModal.tsx
+++ b/web/src/components/NoticesModal.tsx
@@ -7,11 +7,11 @@ import { useI18n } from '../i18n';
 
 export interface NoticesModalProps {
   open: boolean;
-  version: string;
   onClose: () => void;
+  initialNotice?: NoticeItem | null;
 }
 
-const NoticesModal = memo(function NoticesModal({ open, version, onClose }: NoticesModalProps) {
+const NoticesModal = memo(function NoticesModal({ open, onClose, initialNotice }: NoticesModalProps) {
   const { token } = theme.useToken();
   const { t } = useI18n();
   const [items, setItems] = useState<NoticeItem[]>([]);
@@ -28,12 +28,15 @@ const NoticesModal = memo(function NoticesModal({ open, version, onClose }: Noti
     if (mode === 'replace') setLoading(true);
     else setLoadingMore(true);
     try {
-      const resp = await noticesApi.list({ version, page: targetPage });
+      const resp = await noticesApi.list({ page: targetPage });
       setPage(resp.page ?? targetPage);
       setTotal(resp.total ?? 0);
-      setItems(prev => mode === 'replace' ? resp.items : [...prev, ...resp.items]);
+      const nextItems = mode === 'replace' && initialNotice && !resp.items.some(item => item.id === initialNotice.id)
+        ? [initialNotice, ...resp.items]
+        : resp.items;
+      setItems(prev => mode === 'replace' ? nextItems : [...prev, ...resp.items]);
       if (mode === 'replace') {
-        setSelectedId(resp.items[0]?.id ?? null);
+        setSelectedId(initialNotice?.id ?? resp.items[0]?.id ?? null);
       } else {
         setSelectedId(prev => prev ?? resp.items[0]?.id ?? null);
       }
@@ -55,7 +58,7 @@ const NoticesModal = memo(function NoticesModal({ open, version, onClose }: Noti
     setSelectedId(null);
     loadPage(1, 'replace');
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [open, version]);
+  }, [open, initialNotice?.id]);
 
   const formatTime = (ts: number) => {
     try {
@@ -181,4 +184,3 @@ const NoticesModal = memo(function NoticesModal({ open, version, onClose }: Noti
 });
 
 export default NoticesModal;
-
diff --git a/web/src/layout/TopHeader.tsx b/web/src/layout/TopHeader.tsx
index 93ca8d1..03fa036 100644
--- a/web/src/layout/TopHeader.tsx
+++ b/web/src/layout/TopHeader.tsx
@@ -1,6 +1,6 @@
 import { Layout, Button, Dropdown, theme, Flex, Avatar, Typography, Tooltip, Modal, QRCode } from 'antd';
 import { SearchOutlined, MenuUnfoldOutlined, LogoutOutlined, UserOutlined, RobotOutlined, BellOutlined, QrcodeOutlined } from '@ant-design/icons';
-import { memo, useMemo, useState } from 'react';
+import { memo, useEffect, useMemo, useState } from 'react';
 import SearchDialog from './SearchDialog.tsx';
 import { authApi } from '../api/auth.ts';
 import { useNavigate } from 'react-router';
@@ -9,8 +9,8 @@ import LanguageSwitcher from '../components/LanguageSwitcher';
 import { useAuth } from '../contexts/AuthContext';
 import ProfileModal from '../components/ProfileModal';
 import NoticesModal from '../components/NoticesModal';
-import { useSystemStatus } from '../contexts/SystemContext';
 import useResponsive from '../hooks/useResponsive';
+import { noticesApi, type NoticeItem } from '../api/notices';
 
 const { Header } = Layout;
 
@@ -30,7 +30,8 @@ const TopHeader = memo(function TopHeader({ collapsed, onToggle, onOpenAiAgent,
   const [profileOpen, setProfileOpen] = useState(false);
   const [clientAuthOpen, setClientAuthOpen] = useState(false);
   const [noticesOpen, setNoticesOpen] = useState(false);
-  const status = useSystemStatus();
+  const [popupNotice, setPopupNotice] = useState<NoticeItem | null>(null);
+  const [popupMode, setPopupMode] = useState(false);
   const { isMobile } = useResponsive();
   const clientAuthPayload = useMemo(() => JSON.stringify({
     base_url: window.location.origin,
@@ -44,6 +45,35 @@ const TopHeader = memo(function TopHeader({ collapsed, onToggle, onOpenAiAgent,
 
   const openProfile = () => setProfileOpen(true);
   const openClientAuth = () => setClientAuthOpen(true);
+  const openNotices = () => {
+    setPopupMode(false);
+    setNoticesOpen(true);
+  };
+  const closeNotices = async () => {
+    const shouldDismiss = popupMode && popupNotice;
+    setNoticesOpen(false);
+    setPopupMode(false);
+    if (shouldDismiss) {
+      try {
+        await noticesApi.dismiss(popupNotice.id);
+        setPopupNotice(null);
+      } catch { void 0; }
+    }
+  };
+
+  useEffect(() => {
+    let cancelled = false;
+    if (!authToken) return;
+    noticesApi.getPopup().then((notice) => {
+      if (cancelled || !notice) return;
+      setPopupNotice(notice);
+      setPopupMode(true);
+      setNoticesOpen(true);
+    }).catch(() => void 0);
+    return () => {
+      cancelled = true;
+    };
+  }, [authToken]);
 
   return (
     <Header
@@ -84,7 +114,7 @@ const TopHeader = memo(function TopHeader({ collapsed, onToggle, onOpenAiAgent,
             type="text"
             icon={<BellOutlined />}
             aria-label={t('Notices')}
-            onClick={() => setNoticesOpen(true)}
+            onClick={openNotices}
             style={{ paddingInline: 8, height: 40 }}
           />
         </Tooltip>
@@ -133,7 +163,7 @@ const TopHeader = memo(function TopHeader({ collapsed, onToggle, onOpenAiAgent,
             <QRCode value={clientAuthPayload} size={220} />
           </Flex>
         </Modal>
-        <NoticesModal open={noticesOpen} onClose={() => setNoticesOpen(false)} version={status?.version || ''} />
+        <NoticesModal open={noticesOpen} onClose={closeNotices} initialNotice={popupMode ? popupNotice : null} />
       </Flex>
     </Header>
   );