diff --git a/backend/app/api/auth_routes.py b/backend/app/api/auth_routes.py
index 72d9c21..d4076db 100644
--- a/backend/app/api/auth_routes.py
+++ b/backend/app/api/auth_routes.py
@@ -98,16 +98,27 @@ async def login(
     )
 
 
+@router.get("/branding")
+async def branding() -> dict:
+    """登录页/顶栏展示用（无敏感信息）：与企微通知同一机器名。"""
+    from ..notify import wecom
+
+    return {"machine_name": wecom.wecom_machine_name() or ""}
+
+
 @router.get("/me")
 async def me(
     username: Annotated[str, Depends(require_user)],
     settings: Annotated[Settings, Depends(get_settings)],
 ) -> dict:
+    from ..notify import wecom
+
     return {
         "username": username,
         "env_name": settings.env_name,
         "mode": settings.mode,
         "sim": settings.is_sim,
+        "machine_name": wecom.wecom_machine_name() or "",
     }
 
 
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index b25b6af..fc28524 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1,7 +1,8 @@
-import { type ReactNode, useEffect } from "react";
+import { type ReactNode, useEffect, useState } from "react";
 import { NavLink, Navigate, Route, Routes } from "react-router-dom";
 import {
   clearSession,
+  fetchMachineName,
   getToken,
   getUsername,
   startAuthTokenAutoRefresh,
@@ -22,6 +23,17 @@ const NAV = [
 
 function Shell({ children }: { children: ReactNode }) {
   const user = getUsername();
+  const [machineName, setMachineName] = useState("");
+  useEffect(() => {
+    let cancelled = false;
+    void fetchMachineName().then((name) => {
+      if (!cancelled) setMachineName(name);
+    });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+  const machineTag = machineName ? `【${machineName}】` : "";
   return (
     <div className="app-shell">
       <div className="app-container">
@@ -35,8 +47,18 @@ function Shell({ children }: { children: ReactNode }) {
                 width={28}
                 height={28}
               />
-              <span className="brand-full">比特骆驼自动化对冲系统</span>
-              <span className="brand-short">比特骆驼</span>
+              <span className="brand-full">
+                比特骆驼自动化对冲系统
+                {machineTag ? (
+                  <span className="brand-machine">{machineTag}</span>
+                ) : null}
+              </span>
+              <span className="brand-short">
+                比特骆驼
+                {machineTag ? (
+                  <span className="brand-machine">{machineTag}</span>
+                ) : null}
+              </span>
             </div>
             <div className="brand-actions">
               <span className="meta mono topnav-user">{user}</span>
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index 6f168de..e7e19ff 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -32,6 +32,18 @@ export function getUsername(): string | null {
   return localStorage.getItem(USER_KEY);
 }
 
+/** 与企微通知同一机器名（公开接口，登录前可用）。 */
+export async function fetchMachineName(): Promise<string> {
+  try {
+    const res = await fetch(`${getApiBase()}/api/auth/branding`);
+    if (!res.ok) return "";
+    const data = (await res.json()) as { machine_name?: string };
+    return String(data.machine_name || "").trim();
+  } catch {
+    return "";
+  }
+}
+
 function tokenExpiresAtMs(): number | null {
   const raw = localStorage.getItem(TOKEN_EXP_KEY);
   if (!raw) return null;
diff --git a/frontend/src/pages/Login.tsx b/frontend/src/pages/Login.tsx
index f157127..d265083 100644
--- a/frontend/src/pages/Login.tsx
+++ b/frontend/src/pages/Login.tsx
@@ -1,6 +1,6 @@
 import { FormEvent, useEffect, useState } from "react";
 import { useNavigate, useSearchParams } from "react-router-dom";
-import { login, setSession } from "../api/client";
+import { fetchMachineName, login, setSession } from "../api/client";
 
 type ExchangeRes = {
   token: string;
@@ -16,6 +16,17 @@ export default function LoginPage() {
   const [err, setErr] = useState("");
   const [loading, setLoading] = useState(false);
   const [ticketBusy, setTicketBusy] = useState(false);
+  const [machineName, setMachineName] = useState("");
+
+  useEffect(() => {
+    let cancelled = false;
+    void fetchMachineName().then((name) => {
+      if (!cancelled) setMachineName(name);
+    });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
 
   useEffect(() => {
     const ticket = (params.get("ticket") || "").trim();
@@ -91,7 +102,12 @@ export default function LoginPage() {
             width={48}
             height={48}
           />
-          <h1>比特骆驼自动化对冲系统</h1>
+          <h1>
+            比特骆驼自动化对冲系统
+            {machineName ? (
+              <span className="brand-machine">【{machineName}】</span>
+            ) : null}
+          </h1>
         </div>
         {err ? <div className="err">{err}</div> : null}
         <div className="field">
diff --git a/frontend/src/styles/app.css b/frontend/src/styles/app.css
index ebf38d9..37fb80c 100644
--- a/frontend/src/styles/app.css
+++ b/frontend/src/styles/app.css
@@ -124,6 +124,12 @@ input {
   background: transparent;
 }
 
+.brand-machine {
+  margin-left: 0.15em;
+  font-weight: 700;
+  color: var(--accent);
+}
+
 .brand-actions {
   display: flex;
   align-items: center;