diff --git a/src/App.tsx b/src/App.tsx
index f489fed..b69bc05 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -13,6 +13,7 @@ import ProjectDetailPage from '@/pages/ProjectDetailPage'
 import MilestonesPage from '@/pages/MilestonesPage'
 import MilestoneDetailPage from '@/pages/MilestoneDetailPage'
 import NotificationsPage from '@/pages/NotificationsPage'
+import MonitorPage from '@/pages/MonitorPage'
 import axios from 'axios'
 
 const WIZARD_PORT = Number(import.meta.env.VITE_WIZARD_PORT) || 18080
@@ -61,7 +62,16 @@ export default function App() {
   if (!user) {
     return (
       <BrowserRouter>
-        <LoginPage onLogin={login} />
+        <div className="app-layout">
+          <Sidebar user={null} onLogout={logout} />
+          <main className="main-content">
+            <Routes>
+              <Route path="/monitor" element={<MonitorPage />} />
+              <Route path="/login" element={<LoginPage onLogin={login} />} />
+              <Route path="*" element={<Navigate to="/monitor" />} />
+            </Routes>
+          </main>
+        </div>
       </BrowserRouter>
     )
   }
@@ -81,6 +91,7 @@ export default function App() {
             <Route path="/milestones" element={<MilestonesPage />} />
             <Route path="/milestones/:id" element={<MilestoneDetailPage />} />
             <Route path="/notifications" element={<NotificationsPage />} />
+            <Route path="/monitor" element={<MonitorPage />} />
             <Route path="*" element={<Navigate to="/" />} />
           </Routes>
         </main>
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 749d8bf..e8d5eae 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -1,7 +1,7 @@
-import { useState, useEffect } from 'react'
-import { Link, useLocation } from 'react-router-dom'
-import api from '@/services/api'
-import type { User } from '@/types'
+import { useState, useEffect } from react
+import { Link, useLocation } from react-router-dom
+import api from @/services/api
+import type { User } from @/types
 
 interface Props {
   user: User | null
@@ -13,23 +13,30 @@ export default function Sidebar({ user, onLogout }: Props) {
   const [unreadCount, setUnreadCount] = useState(0)
 
   useEffect(() => {
-    api.get<{ count: number }>('/notifications/count')
+    if (!user) {
+      setUnreadCount(0)
+      return
+    }
+    api.get<{ count: number }>(/notifications/count)
       .then(({ data }) => setUnreadCount(data.count))
       .catch(() => {})
     const timer = setInterval(() => {
-      api.get<{ count: number }>('/notifications/count')
+      api.get<{ count: number }>(/notifications/count)
         .then(({ data }) => setUnreadCount(data.count))
         .catch(() => {})
     }, 30000)
     return () => clearInterval(timer)
-  }, [])
+  }, [user])
 
-  const links = [
-    { to: '/', icon: '📊', label: '仪表盘' },
-    { to: '/issues', icon: '📋', label: 'Issues' },
-    { to: '/projects', icon: '📁', label: '项目' },
-    { to: '/milestones', icon: '🏁', label: '里程碑' },
-    { to: '/notifications', icon: '🔔', label: `通知${unreadCount > 0 ? ` (${unreadCount})` : ''}` },
+  const links = user ? [
+    { to: /, icon: 📊, label: 仪表盘 },
+    { to: /issues, icon: 📋, label: Issues },
+    { to: /projects, icon: 📁, label: 项目 },
+    { to: /milestones, icon: 🏁, label: 里程碑 },
+    { to: /notifications, icon: 🔔, label: `通知${unreadCount > 0 ? ` (${unreadCount})` : }` },
+    { to: /monitor, icon: 📡, label: Monitor },
+  ] : [
+    { to: /monitor, icon: 📡, label: Monitor },
   ]
 
   return (
@@ -39,7 +46,7 @@ export default function Sidebar({ user, onLogout }: Props) {
       </div>
       <ul className="nav-links">
         {links.map((l) => (
-          <li key={l.to} className={pathname === l.to || (l.to !== '/' && pathname.startsWith(l.to)) ? 'active' : ''}>
+          <li key={l.to} className={pathname === l.to || (l.to !== / && pathname.startsWith(l.to)) ? active : }>
             <Link to={l.to}>{l.icon} {l.label}</Link>
           </li>
         ))}
diff --git a/src/pages/MonitorPage.tsx b/src/pages/MonitorPage.tsx
new file mode 100644
index 0000000..fe58cf0
--- /dev/null
+++ b/src/pages/MonitorPage.tsx
@@ -0,0 +1,113 @@
+import { useEffect, useState } from 'react'
+import api from '@/services/api'
+
+interface ProviderRow {
+  account_id: number
+  provider: string
+  label: string
+  usage_pct: number | null
+  status: string
+  error?: string | null
+  fetched_at?: string | null
+  reset_at?: string | null
+}
+
+interface ServerRow {
+  server_id: number
+  identifier: string
+  display_name: string
+  online: boolean
+  openclaw_version?: string | null
+  cpu_pct?: number | null
+  mem_pct?: number | null
+  disk_pct?: number | null
+  swap_pct?: number | null
+  agents: Array<{ id?: string; name?: string; status?: string }>
+  last_seen_at?: string | null
+}
+
+interface OverviewData {
+  issues: {
+    total_issues: number
+    new_issues_24h: number
+    processed_issues_24h: number
+    computed_at: string
+  }
+  providers: ProviderRow[]
+  servers: ServerRow[]
+  generated_at: string
+}
+
+export default function MonitorPage() {
+  const [data, setData] = useState<OverviewData | null>(null)
+  const [loading, setLoading] = useState(true)
+
+  const load = async () => {
+    try {
+      const res = await api.get<OverviewData>('/monitor/public/overview')
+      setData(res.data)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  useEffect(() => {
+    load()
+    const t = setInterval(load, 30000)
+    return () => clearInterval(t)
+  }, [])
+
+  if (loading) return <div className='loading'>Monitor loading...</div>
+  if (!data) return <div className='loading'>Monitor load failed</div>
+
+  return (
+    <div>
+      <h2>📡 Monitor</h2>
+
+      <section>
+        <h3>Issue 概览（24小时窗口）</h3>
+        <ul>
+          <li>所有项目总 Issue：{data.issues.total_issues}</li>
+          <li>24小时新增：{data.issues.new_issues_24h}</li>
+          <li>24小时已处理（resolved/closed）：{data.issues.processed_issues_24h}</li>
+        </ul>
+      </section>
+
+      <section>
+        <h3>Provider Usage</h3>
+        {data.providers.length === 0 ? <p>暂无 provider 账号</p> : (
+          <ul>
+            {data.providers.map((p) => (
+              <li key={p.account_id}>
+                <strong>{p.provider}</strong> / {p.label} · status: {p.status}
+                {p.usage_pct !== null ?  : ''}
+                {p.reset_at ?  : ''}
+                {p.error ?  : ''}
+              </li>
+            ))}
+          </ul>
+        )}
+      </section>
+
+      <section>
+        <h3>服务器监测</h3>
+        {data.servers.length === 0 ? <p>暂无监测服务器</p> : (
+          <div>
+            {data.servers.map((s) => (
+              <div key={s.server_id} style={{ marginBottom: 12, padding: 12, border: '1px solid #ddd', borderRadius: 8 }}>
+                <div>
+                  <strong>{s.display_name}</strong> ({s.identifier}) · {s.online ? '🟢 在线' : '🔴 离线'}
+                </div>
+                <div>
+                  CPU: {s.cpu_pct ?? '-'}% · MEM: {s.mem_pct ?? '-'}% · DISK: {s.disk_pct ?? '-'}% · SWAP: {s.swap_pct ?? '-'}%
+                </div>
+                <div>OpenClaw: {s.openclaw_version || '-'}</div>
+                <div>Agents: {s.agents?.length || 0}</div>
+              </div>
+            ))}
+          </div>
+        )}
+      </section>
+    </div>
+  )
+}
diff --git a/src/services/api.ts b/src/services/api.ts
index 0cd7b30..6ead39a 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -22,7 +22,9 @@ api.interceptors.response.use(
   (err) => {
     if (err.response?.status === 401) {
       localStorage.removeItem('token')
-      if (window.location.pathname !== '/login') {
+      const path = window.location.pathname
+      const publicPaths = ['/monitor', '/login']
+      if (!publicPaths.some((p) => path.startsWith(p))) {
         window.location.href = '/login'
       }
     }