diff --git a/web/backend/routers/huya.py b/web/backend/routers/huya.py
index 2446e4e..3d0b9e0 100644
--- a/web/backend/routers/huya.py
+++ b/web/backend/routers/huya.py
@@ -3,9 +3,13 @@
 import asyncio
 import csv
 import io
+import json
+import shutil
 import threading
 from datetime import datetime, timezone
 
+from pathlib import Path
+
 from fastapi import APIRouter, Depends, HTTPException, Query, WebSocket, WebSocketDisconnect
 from fastapi.responses import StreamingResponse
 from sqlalchemy import func, or_
@@ -22,6 +26,8 @@ from core.huya import (
     send_huya_sms_code,
 )
 from core.huya.cookie_utils import normalize_huya_cookie
+from core.huya.device_fingerprint import account_state_dir as _fp_state_dir
+from core.huya.device_profile import _load_db as _load_profile_db, _save_db as _save_profile_db
 from core.sms_provider import parse_sms_lines
 
 from ..database import SessionLocal, get_db
@@ -1749,3 +1755,68 @@ async def ws_huya_logs(websocket: WebSocket, batch_id: str):
         latest = huya_batch_registry.get(batch_id)
         if latest and latest.get("finished"):
             huya_batch_registry.pop(batch_id)
+
+
+# ==================== 设备绑定管理 (一号一环境, R40) ====================
+# 环境数据源:
+#   1) data/huya_device_profiles.json  — 账号 ↔ 设备画像 (core.huya.device_profile)
+#   2) data/huya_fp_states/<账号>/     — hydevice 高信任指纹 localStorage (account_state_dir)
+#   3) huya_accounts 表                — 登录渠道/账号状态 (登录成功后回填)
+# 解绑 = 删除 1+2 → 下次 App 登录自动生成全新环境并重新注册签发 t2/t5。
+
+_DEVICE_BINDINGS_PERMS_VIEW = ("huya:account", "huya:view_all", "huya:view_assigned")
+
+
+def _mask_hex(value: str | None, keep: int = 12) -> str:
+    """设备标识脱敏展示: 只保留前 keep 位。"""
+    v = value or ""
+    return f"{v[:keep]}…({len(v)})" if len(v) > keep else v
+
+
+@router.get("/device-bindings")
+def list_device_bindings(db: Session = Depends(get_db), current: User = Depends(get_current_user)):
+    """列出所有账号 ↔ 设备环境绑定 (画像 + 指纹状态 + 账号表三方合并)。"""
+    if not any(user_has_permission(current, p) for p in _DEVICE_BINDINGS_PERMS_VIEW):
+        raise HTTPException(status_code=403, detail="无虎牙账号查看权限")
+    profiles = _load_profile_db()
+    accounts = {a.username: a for a in db.query(HuyaAccount).all() if a.username}
+    rows = []
+    for account, prof in sorted(profiles.items()):
+        acct = accounts.get(account)
+        state_dir = _fp_state_dir(account)
+        last_login = prof.get("last_login") or {}
+        rows.append({
+            "account": account,
+            "vendor": prof.get("vendor", ""),
+            "model": prof.get("model", ""),
+            "screen": prof.get("screen", ""),
+            "fingerprint_masked": _mask_hex(prof.get("fingerprint")),
+            "guid32_masked": _mask_hex(prof.get("guid32")),
+            "hebe_count": len(prof.get("hebe") or {}),
+            "hdid32": prof.get("hdid", ""),           # t1.t0 app 级常量, 非敏感
+            "has_hydevice_state": state_dir.exists(),
+            "login_channel": (acct.login_channel if acct else "") or "",
+            "account_status": (acct.status if acct else "") or "未入库",
+            "bound_at": prof.get("bound_at"),
+            "last_login_at": last_login.get("at"),
+            "last_login_ok": last_login.get("ok"),
+        })
+    return {"items": rows, "total": len(rows)}
+
+
+@router.delete("/device-bindings/{account}")
+def delete_device_binding(account: str, db: Session = Depends(get_db), current: User = Depends(get_current_user)):
+    """解绑: 删除该账号的设备画像与 hydevice 指纹状态, 下次登录自动生成全新环境。"""
+    _require_huya_perm(current, "huya:import")
+    profiles = _load_profile_db()
+    if account not in profiles:
+        raise HTTPException(status_code=404, detail="该账号没有设备绑定记录")
+    profiles.pop(account)
+    _save_profile_db(profiles)
+    state_dir = _fp_state_dir(account)
+    removed_state = False
+    if state_dir.exists():
+        shutil.rmtree(state_dir, ignore_errors=True)
+        removed_state = True
+    return {"ok": True, "account": account, "profile_removed": True, "fp_state_removed": removed_state,
+            "message": "已解绑, 下次 App 协议登录将自动生成全新设备环境并重新注册"}
diff --git a/web/frontend/src/App.tsx b/web/frontend/src/App.tsx
index b64e8ac..238512c 100644
--- a/web/frontend/src/App.tsx
+++ b/web/frontend/src/App.tsx
@@ -23,6 +23,7 @@ const HuyaAccountsPage = lazy(() => import('./pages/HuyaAccountsPage'));
 const HuyaAssignmentsPage = lazy(() => import('./pages/HuyaAssignmentsPage'));
 const HuyaCookiePage = lazy(() => import('./pages/HuyaCookiePage'));
 const HuyaRegisterPage = lazy(() => import('./pages/HuyaRegisterPage'));
+const HuyaDeviceBindingsPage = lazy(() => import('./pages/HuyaDeviceBindingsPage'));
 const HuyaTasksPage = lazy(() => import('./pages/HuyaTasksPage'));
 const YybRechargePage = lazy(() => import('./pages/YybRechargePage'));
 const AuditLogsPage = lazy(() => import('./pages/AuditLogsPage'));
@@ -88,6 +89,7 @@ function AppContent() {
               <Route path="douyu/esports" element={lazyRoute(<DouyuTasksPage key="esports" handbook="esports" />)} />
               <Route path="douyu/peace" element={lazyRoute(<DouyuTasksPage key="peace" handbook="peace" />)} />
               <Route path="huya/accounts" element={lazyRoute(<HuyaAccountsPage />)} />
+              <Route path="huya/device-bindings" element={lazyRoute(<HuyaDeviceBindingsPage />)} />
               <Route path="huya/register" element={lazyRoute(<HuyaRegisterPage />)} />
               <Route path="huya/assignments" element={lazyRoute(<HuyaAssignmentsPage />)} />
               <Route path="huya/cookies" element={lazyRoute(<HuyaCookiePage />)} />
diff --git a/web/frontend/src/api/huya.ts b/web/frontend/src/api/huya.ts
index 8b76c9c..084943c 100644
--- a/web/frontend/src/api/huya.ts
+++ b/web/frontend/src/api/huya.ts
@@ -5,6 +5,7 @@ import type {
   AccountBulkTagRequest,
   HuyaAccountItem,
   HuyaAccountSummary,
+  HuyaDeviceBindingListResult,
   HuyaAutoRegisterBatch,
   HuyaAutoRegisterRequest,
   HuyaAutoRegisterRetryRequest,
@@ -42,6 +43,12 @@ export const huyaApi = {
   listAccountsPaged: (params: PageParams & { assigned_only?: boolean; tag?: string; has_cookie?: boolean; include_cookie?: boolean }) =>
     api.get<PaginatedResponse<HuyaAccountItem>, PaginatedResponse<HuyaAccountItem>>('/huya/accounts', { params }),
   accountsSummary: () => api.get<HuyaAccountSummary, HuyaAccountSummary>('/huya/accounts/summary'),
+  /** 设备绑定: 账号 ↔ 环境列表 (画像+指纹状态+账号表合并) */
+  listDeviceBindings: () =>
+    api.get<HuyaDeviceBindingListResult, HuyaDeviceBindingListResult>('/huya/device-bindings'),
+  /** 解绑: 删除设备画像与 hydevice 指纹状态, 下次登录自动生成全新环境 */
+  deleteDeviceBinding: (account: string) =>
+    api.delete<{ ok: boolean; message: string }, { ok: boolean; message: string }>(`/huya/device-bindings/${encodeURIComponent(account)}`),
   importCookies: (text: string, tag: string = '') =>
     api.post<HuyaCookieImportResult, HuyaCookieImportResult>('/huya/accounts/import-cookies', { text, tag }),
   importPasswordAccounts: (text: string, tag: string = '') =>
diff --git a/web/frontend/src/api/types.ts b/web/frontend/src/api/types.ts
index 969cfb5..6e08e91 100644
--- a/web/frontend/src/api/types.ts
+++ b/web/frontend/src/api/types.ts
@@ -463,6 +463,29 @@ export interface HuyaAccountItem {
   updated_at: string | null;
 }
 
+/** 账号 ↔ 设备环境绑定 (一号一环境, 后端 data/huya_device_profiles.json + huya_fp_states) */
+export interface HuyaDeviceBindingItem {
+  account: string;
+  vendor: string;
+  model: string;
+  screen: string;
+  fingerprint_masked: string;
+  guid32_masked: string;
+  hebe_count: number;
+  hdid32: string;
+  has_hydevice_state: boolean;
+  login_channel: string;
+  account_status: string;
+  bound_at: number | null;
+  last_login_at: number | null;
+  last_login_ok: boolean | null;
+}
+
+export interface HuyaDeviceBindingListResult {
+  items: HuyaDeviceBindingItem[];
+  total: number;
+}
+
 export interface HuyaAccountSummary extends BasicSummary {
   password_ready_count: number;
   point_count: number;
diff --git a/web/frontend/src/layouts/MainLayout.tsx b/web/frontend/src/layouts/MainLayout.tsx
index fedec14..ef6d61b 100644
--- a/web/frontend/src/layouts/MainLayout.tsx
+++ b/web/frontend/src/layouts/MainLayout.tsx
@@ -83,6 +83,7 @@ export default function MainLayout({ onLogout }: { onLogout?: () => void }) {
   // 虎牙
   if (canAny(['huya:account', 'huya:view_all', 'huya:view_assigned'])) {
     huyaItems.push({ key: '/huya/accounts', label: '账号管理', icon: <GiftOutlined /> });
+    huyaItems.push({ key: '/huya/device-bindings', label: '设备绑定', icon: <ApiOutlined /> });
   }
   if (canAny(['huya:account', 'huya:import'])) {
     huyaItems.push({ key: '/huya/register', label: '自动注册', icon: <MobileOutlined /> });
diff --git a/web/frontend/src/pages/HuyaDeviceBindingsPage.tsx b/web/frontend/src/pages/HuyaDeviceBindingsPage.tsx
new file mode 100644
index 0000000..a1eb114
--- /dev/null
+++ b/web/frontend/src/pages/HuyaDeviceBindingsPage.tsx
@@ -0,0 +1,139 @@
+/**
+ * 虎牙设备绑定管理页 — 账号 ↔ 设备环境 (一号一环境) 可视化。
+ *
+ * 数据来源 (后端 /huya/device-bindings 合并三处):
+ *   1. data/huya_device_profiles.json  账号画像 (机型/屏幕/指纹40/guid32/Hebe)
+ *   2. data/huya_fp_states/<账号>/     hydevice 高信任指纹状态 (sdid/40hex hdid 的根)
+ *   3. huya_accounts 表                登录渠道 / 账号状态
+ *
+ * 解绑 = 删除 1+2 → 下次 App 协议登录自动生成全新环境并重新注册签发 t2/t5。
+ */
+import { useCallback, useEffect, useState } from 'react';
+import { Button, Card, Col, Popconfirm, Row, Statistic, Table, Tag, Tooltip, Typography } from 'antd';
+import type { TableProps } from 'antd';
+import { LinkOutlined, ReloadOutlined, RestOutlined } from '@ant-design/icons';
+import { message } from '../utils/antdMessage';
+import { huyaApi, type HuyaDeviceBindingItem } from '../api/modules';
+import { getErrorMessage } from '../utils/error';
+
+const { Text } = Typography;
+
+/** 登录渠道展示 (与账号管理页一致) */
+const CHANNEL_LABELS: Record<string, { label: string; color: string }> = {
+  app: { label: 'App 协议', color: 'processing' },
+  web: { label: 'Web 旧版', color: 'warning' },
+  sms: { label: '短信', color: 'cyan' },
+};
+
+export default function HuyaDeviceBindingsPage() {
+  const [items, setItems] = useState<HuyaDeviceBindingItem[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [unbinding, setUnbinding] = useState('');
+
+  const load = useCallback(async () => {
+    setLoading(true);
+    try {
+      const result = await huyaApi.listDeviceBindings();
+      setItems(result.items || []);
+    } catch (e: unknown) {
+      message.error(getErrorMessage(e));
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => { load(); }, [load]);
+
+  /** 解绑: 清除画像+指纹状态, 下次登录生成全新设备 */
+  const handleUnbind = async (account: string) => {
+    setUnbinding(account);
+    try {
+      await huyaApi.deleteDeviceBinding(account);
+      message.success(`已解绑 ${account}, 下次 App 协议登录将生成全新设备环境`);
+      load();
+    } catch (e: unknown) {
+      message.error(getErrorMessage(e));
+    } finally {
+      setUnbinding('');
+    }
+  };
+
+  const columns: TableProps<HuyaDeviceBindingItem>['columns'] = [
+    { title: '账号', dataIndex: 'account', width: 150, ellipsis: true,
+      render: (v: string) => <Text copyable={{ text: v }}>{v}</Text> },
+    { title: '机型', width: 150,
+      render: (_: unknown, r: HuyaDeviceBindingItem) => (
+        <span>{r.model || '-'} <Text type="secondary" style={{ fontSize: 12 }}>({r.vendor})</Text></span>
+      ) },
+    { title: '屏幕', dataIndex: 'screen', width: 150, ellipsis: true },
+    { title: '设备指纹 (CDID40)', dataIndex: 'fingerprint_masked', width: 170 },
+    { title: 'GUID32', dataIndex: 'guid32_masked', width: 160 },
+    { title: 'Hebe', dataIndex: 'hebe_count', width: 70, align: 'center',
+      render: (n: number) => <Tag color="geekblue">{n} 项</Tag> },
+    { title: 'hydevice 状态', dataIndex: 'has_hydevice_state', width: 110, align: 'center',
+      render: (ok: boolean) => ok
+        ? <Tag color="success">已生成</Tag>
+        : <Tooltip title="尚无高信任指纹状态, 下次 App 登录时生成"><Tag>待生成</Tag></Tooltip> },
+    { title: '登录渠道', dataIndex: 'login_channel', width: 100, align: 'center',
+      render: (c: string) => {
+        const info = CHANNEL_LABELS[c];
+        return info ? <Tag color={info.color}>{info.label}</Tag> : <Tag>未登录</Tag>;
+      } },
+    { title: '账号状态', dataIndex: 'account_status', width: 100, align: 'center',
+      render: (s: string) => s === '未入库' ? <Tag>未入库</Tag> : <span>{s}</span> },
+    { title: '最后登录', dataIndex: 'last_login_at', width: 160,
+      render: (_: unknown, r: HuyaDeviceBindingItem) => {
+        if (!r.last_login_at) return <Text type="secondary">-</Text>;
+        const time = new Date(r.last_login_at * 1000).toLocaleString();
+        return <span>{time} {r.last_login_ok === false && <Tag color="error">失败</Tag>}</span>;
+      } },
+    { title: '操作', width: 110, align: 'center',
+      render: (_: unknown, r: HuyaDeviceBindingItem) => (
+        <Popconfirm
+          title={`解绑 ${r.account}?`}
+          description="删除设备画像与指纹状态, 下次登录将生成全新设备环境并重新注册"
+          onConfirm={() => handleUnbind(r.account)}
+        >
+          <Button danger size="small" icon={<RestOutlined />} loading={unbinding === r.account}>
+            解绑重绑
+          </Button>
+        </Popconfirm>
+      ) },
+  ];
+
+  const withState = items.filter((i) => i.has_hydevice_state).length;
+  const linked = items.filter((i) => i.account_status !== '未入库').length;
+
+  return (
+    <div>
+      <div style={{ marginBottom: 16, display: 'flex', justifyContent: 'space-between', alignItems: 'center', gap: 12 }}>
+        <h2 style={{ margin: 0 }}>虎牙设备绑定</h2>
+        <Button icon={<ReloadOutlined />} onClick={load} loading={loading}>刷新</Button>
+      </div>
+
+      <Row gutter={12} style={{ marginBottom: 16 }}>
+        <Col xs={24} sm={8}><Card size="small"><Statistic title="绑定环境总数" value={items.length} prefix={<LinkOutlined />} /></Card></Col>
+        <Col xs={24} sm={8}><Card size="small"><Statistic title="已生成指纹状态" value={withState} /></Card></Col>
+        <Col xs={24} sm={8}><Card size="small"><Statistic title="已入库账号" value={linked} /></Card></Col>
+      </Row>
+
+      <Card size="small" style={{ marginBottom: 16 }}>
+        <Text type="secondary">
+          一号一环境: 每个账号绑定一套独立设备画像 (机型/屏幕/指纹40/GUID32/Hebe) 与独立的 hydevice
+          指纹状态; App 协议登录时用该环境注册并由服务端签发 safedeviceid/device_id。
+          解绑后下次登录自动生成全新环境。登录帧 t1.t0 为 app 版本级常量 (R15), 不区分设备。
+        </Text>
+      </Card>
+
+      <Table<HuyaDeviceBindingItem>
+        rowKey="account"
+        columns={columns}
+        dataSource={items}
+        loading={loading}
+        pagination={{ pageSize: 20, showSizeChanger: false, showTotal: (t) => `共 ${t} 条` }}
+        size="middle"
+      />
+
+    </div>
+  );
+}