diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index c075be8..e774b91 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -41,6 +41,7 @@ const AdminProductsPage = lazy(() => import("./pages/admin/AdminProductsPage"));
 const AdminTasksPage = lazy(() => import("./pages/admin/AdminTasksPage"));
 const AdminPeoplePage = lazy(() => import("./pages/admin/AdminPeoplePage"));
 const AdminPrintConfigPage = lazy(() => import("./pages/admin/AdminPrintConfigPage"));
+const AdminAuditLogPage = lazy(() => import("./pages/admin/AdminAuditLogPage"));
 const AnalyticsDashboard = lazy(() => import("./pages/admin/AnalyticsDashboard"));
 const MatrixBoard = lazy(() => import("./pages/MatrixBoard"));
 const ScreenDashboard = lazy(() => import("./pages/admin/ScreenDashboard"));
@@ -79,6 +80,7 @@ export default function App() {
                   <Route path="/admin/print-config" element={<AdminPrintConfigPage />} />
                   <Route path="/admin/analytics" element={<AnalyticsDashboard />} />
                   <Route path="/admin/matrix" element={<MatrixBoard />} />
+                  <Route path="/admin/audit" element={<AdminAuditLogPage />} />
                 </Route>
               </Routes>
             </Suspense>
diff --git a/frontend/src/components/layout/AdminLayout.tsx b/frontend/src/components/layout/AdminLayout.tsx
index a8595e5..f4197c1 100644
--- a/frontend/src/components/layout/AdminLayout.tsx
+++ b/frontend/src/components/layout/AdminLayout.tsx
@@ -1,5 +1,5 @@
 import { NavLink, Outlet, useLocation, useNavigate, Navigate } from "react-router-dom";
-import { QrCode, Package, ArrowLeft, LayoutDashboard, Smartphone, GitBranch, LogOut, User, Users, BarChart3, Table2, Tv } from "lucide-react";
+import { QrCode, Package, ArrowLeft, LayoutDashboard, Smartphone, GitBranch, LogOut, User, Users, BarChart3, Table2, Tv, ScrollText } from "lucide-react";
 import { useAuth } from "../../contexts/AuthContext";
 
 const MENU = [
@@ -39,6 +39,12 @@ const MENU = [
     icon: Table2,
     description: "规格型号 × 人员/工序 在制品透视表",
   },
+  {
+    title: "操作审计",
+    path: "/admin/audit",
+    icon: ScrollText,
+    description: "谁在何时操作了什么 · 含失败与被拒请求",
+  },
   {
     title: "管理层大屏",
     path: "/admin/screen",
diff --git a/frontend/src/constants/task.ts b/frontend/src/constants/task.ts
index fec0b5d..ec02d44 100644
--- a/frontend/src/constants/task.ts
+++ b/frontend/src/constants/task.ts
@@ -227,7 +227,8 @@ export function overallOptionsFor(
 
 /** 列表筛选枚举 — 两阶段并集（用于筛选，不是录入项） */
 /**
- * 管理角色 — 必须与后端 task_service.ADMIN_ROLES 保持一致。
+ * 管理角色 — 必须与后端 app/core/roles.py 的 ADMIN_ROLES 保持一致
+ * （后端那份已从 task_service 收敛到 core.roles，是全项目唯一事实来源）。
  *
  * ⚠️ 收敛到这里的理由：此前这段判断散落在多处（TaskFlowView / AdminProductsPage），
  *    而移动端那份只判了 SUPER_ADMIN、漏了 SUPERVISOR，导致主管被前端误挡。
diff --git a/frontend/src/pages/admin/AdminAuditLogPage.tsx b/frontend/src/pages/admin/AdminAuditLogPage.tsx
new file mode 100644
index 0000000..08b1cd9
--- /dev/null
+++ b/frontend/src/pages/admin/AdminAuditLogPage.tsx
@@ -0,0 +1,355 @@
+/** 操作审计日志 — 谁 / 何时 / 从哪 / 对什么 / 做了什么事 / 结果如何 */
+import { useCallback, useEffect, useState } from "react";
+import { ScrollText, Loader2, AlertCircle, RefreshCw, Search, X } from "lucide-react";
+import { Table, Tag, Input, Select, DatePicker, Button, Tooltip, Drawer, Descriptions } from "antd";
+import type { ColumnsType } from "antd/es/table";
+import dayjs, { type Dayjs } from "dayjs";
+import { fetchAuditLogs, fetchAuditOptions, type AuditLogItem, type AuditOption } from "../../services/auditApi";
+import { extractErrorMessage } from "../../utils/errorMessage";
+
+const { RangePicker } = DatePicker;
+
+/** HTTP 方法配色 —— 让「这是读还是写」一眼可辨 */
+const METHOD_CLS: Record<string, string> = {
+  GET: "bg-slate-100 text-slate-600",
+  POST: "bg-emerald-100 text-emerald-700",
+  PUT: "bg-amber-100 text-amber-700",
+  PATCH: "bg-amber-100 text-amber-700",
+  DELETE: "bg-red-100 text-red-700",
+};
+
+/** 结果状态：2xx 正常 / 4xx 被拒 / 5xx 服务异常 */
+function statusCls(code: number | null): string {
+  if (code === null) return "bg-slate-100 text-slate-500";
+  if (code >= 500) return "bg-red-100 text-red-700";
+  if (code >= 400) return "bg-orange-100 text-orange-700";
+  return "bg-emerald-100 text-emerald-700";
+}
+
+const PAGE_SIZE = 50;
+
+export default function AdminAuditLogPage() {
+  const [rows, setRows] = useState<AuditLogItem[]>([]);
+  const [total, setTotal] = useState(0);
+  const [page, setPage] = useState(1);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [detail, setDetail] = useState<AuditLogItem | null>(null);
+
+  const [modules, setModules] = useState<AuditOption[]>([]);
+  const [actions, setActions] = useState<AuditOption[]>([]);
+
+  // 筛选条件（user_id 用受控输入，其余即时生效）
+  const [userInput, setUserInput] = useState("");
+  const [userId, setUserId] = useState("");
+  const [module, setModule] = useState<string | undefined>();
+  const [action, setAction] = useState<string | undefined>();
+  const [statusCode, setStatusCode] = useState<number | undefined>();
+  const [range, setRange] = useState<[Dayjs, Dayjs] | null>(null);
+
+  const load = useCallback(async () => {
+    setLoading(true);
+    setError(null);
+    try {
+      const res = await fetchAuditLogs({
+        user_id: userId || undefined,
+        module,
+        action,
+        status_code: statusCode,
+        start_date: range?.[0]?.format("YYYY-MM-DD"),
+        // 后端按「含当天」处理结束日期，这里直接传所选日期即可
+        end_date: range?.[1]?.format("YYYY-MM-DD"),
+        page,
+        page_size: PAGE_SIZE,
+      });
+      setRows(res.items);
+      // total 取自后端 count 查询的真实总数，而非当前页条数
+      setTotal(res.total);
+    } catch (e) {
+      setError(extractErrorMessage(e));
+    } finally {
+      setLoading(false);
+    }
+  }, [userId, module, action, statusCode, range, page]);
+
+  useEffect(() => {
+    void load();
+  }, [load]);
+
+  useEffect(() => {
+    fetchAuditOptions()
+      .then((o) => {
+        setModules(o.modules);
+        setActions(o.actions);
+      })
+      .catch(() => {
+        /* 筛选项拉取失败不影响列表本身 */
+      });
+  }, []);
+
+  const hasFilter = !!(userId || module || action || statusCode || range);
+
+  const resetFilters = () => {
+    setUserInput("");
+    setUserId("");
+    setModule(undefined);
+    setAction(undefined);
+    setStatusCode(undefined);
+    setRange(null);
+    setPage(1);
+  };
+
+  const columns: ColumnsType<AuditLogItem> = [
+    {
+      title: "时间",
+      dataIndex: "created_at",
+      width: 165,
+      render: (v: string) => (
+        <span className="whitespace-nowrap text-gray-600">{dayjs(v).format("YYYY-MM-DD HH:mm:ss")}</span>
+      ),
+    },
+    {
+      title: "操作人",
+      dataIndex: "user_id",
+      width: 140,
+      render: (_, r) =>
+        r.user_id ? (
+          <div className="leading-tight">
+            <div className="text-gray-900">{r.display_name || r.user_id}</div>
+            <div className="text-xs text-gray-400">{r.user_id}</div>
+          </div>
+        ) : (
+          <span className="text-gray-400">未认证</span>
+        ),
+    },
+    {
+      title: "模块",
+      dataIndex: "module_label",
+      width: 110,
+      render: (v, r) => <span>{v || r.module}</span>,
+    },
+    {
+      title: "动作",
+      dataIndex: "action_label",
+      width: 100,
+      render: (v, r) => <Tag color="blue">{v || r.action}</Tag>,
+    },
+    {
+      title: "请求",
+      dataIndex: "method",
+      width: 210,
+      render: (_, r) => (
+        <div className="flex items-center gap-1.5">
+          <span className={`rounded px-1.5 py-0.5 text-xs font-mono ${METHOD_CLS[r.method || ""] || "bg-slate-100 text-slate-600"}`}>
+            {r.method}
+          </span>
+          <span className="truncate font-mono text-xs text-gray-500" title={r.url || ""}>
+            {r.url}
+          </span>
+        </div>
+      ),
+    },
+    {
+      title: "结果",
+      dataIndex: "status_code",
+      width: 80,
+      render: (v: number | null) => <span className={`rounded px-2 py-0.5 text-xs font-mono ${statusCls(v)}`}>{v ?? "-"}</span>,
+    },
+    {
+      title: "来源 IP",
+      dataIndex: "ip_address",
+      width: 130,
+      render: (v: string | null) => <span className="font-mono text-xs text-gray-500">{v || "-"}</span>,
+    },
+    {
+      title: "",
+      key: "op",
+      width: 70,
+      render: (_, r) => (
+        <Button type="link" size="small" onClick={() => setDetail(r)}>
+          详情
+        </Button>
+      ),
+    },
+  ];
+
+  return (
+    <div className="p-6">
+      <div className="mb-4 flex items-center justify-between">
+        <div>
+          <h1 className="flex items-center gap-2 text-xl font-semibold text-gray-900">
+            <ScrollText className="h-5 w-5 text-blue-600" />
+            操作审计
+          </h1>
+          <p className="mt-1 text-sm text-gray-500">
+            所有写操作（含被拒绝的请求）自动留痕，共 {total} 条
+          </p>
+        </div>
+        <Button icon={<RefreshCw className="h-4 w-4" />} onClick={() => void load()} loading={loading}>
+          刷新
+        </Button>
+      </div>
+
+      {/* 筛选区 */}
+      <div className="mb-4 flex flex-wrap items-center gap-2">
+        <Input
+          placeholder="操作人账号"
+          prefix={<Search className="h-4 w-4 text-gray-400" />}
+          value={userInput}
+          allowClear
+          style={{ width: 180 }}
+          onChange={(e) => setUserInput(e.target.value)}
+          onPressEnter={() => {
+            setPage(1);
+            setUserId(userInput.trim());
+          }}
+          onBlur={() => {
+            setPage(1);
+            setUserId(userInput.trim());
+          }}
+        />
+        <Select
+          placeholder="模块"
+          allowClear
+          style={{ width: 140 }}
+          value={module}
+          options={modules}
+          onChange={(v) => {
+            setPage(1);
+            setModule(v);
+          }}
+        />
+        <Select
+          placeholder="动作"
+          allowClear
+          style={{ width: 130 }}
+          value={action}
+          options={actions}
+          onChange={(v) => {
+            setPage(1);
+            setAction(v);
+          }}
+        />
+        <Select
+          placeholder="结果"
+          allowClear
+          style={{ width: 130 }}
+          value={statusCode}
+          options={[
+            { value: 200, label: "成功 (2xx/3xx)" },
+            { value: 401, label: "未认证 401" },
+            { value: 403, label: "无权限 403" },
+            { value: 422, label: "参数错误 422" },
+            { value: 500, label: "服务异常 500" },
+          ]}
+          onChange={(v) => {
+            setPage(1);
+            setStatusCode(v);
+          }}
+        />
+        <RangePicker
+          value={range}
+          onChange={(v) => {
+            setPage(1);
+            setRange(v as [Dayjs, Dayjs] | null);
+          }}
+        />
+        {hasFilter && (
+          <Button icon={<X className="h-4 w-4" />} onClick={resetFilters}>
+            清空
+          </Button>
+        )}
+      </div>
+
+      {error && (
+        <div className="mb-4 flex items-start gap-2 rounded-lg border border-red-200 bg-red-50 p-3 text-sm text-red-700">
+          <AlertCircle className="mt-0.5 h-4 w-4 shrink-0" />
+          <span>{error}</span>
+        </div>
+      )}
+
+      <Table<AuditLogItem>
+        rowKey="id"
+        columns={columns}
+        dataSource={rows}
+        loading={loading && { indicator: <Loader2 className="h-5 w-5 animate-spin text-blue-600" /> }}
+        size="small"
+        scroll={{ x: 1000 }}
+        pagination={{
+          current: page,
+          pageSize: PAGE_SIZE,
+          total,
+          showSizeChanger: false,
+          showTotal: (t) => `共 ${t} 条`,
+          onChange: setPage,
+        }}
+      />
+
+      {/* 详情抽屉：完整 URL / UA / request_id / error_message 都在这里 */}
+      <Drawer
+        title="审计详情"
+        width={560}
+        open={!!detail}
+        onClose={() => setDetail(null)}
+      >
+        {detail && (
+          <Descriptions column={1} size="small" bordered>
+            <Descriptions.Item label="时间">
+              {dayjs(detail.created_at).format("YYYY-MM-DD HH:mm:ss")}
+            </Descriptions.Item>
+            <Descriptions.Item label="操作人">
+              {detail.user_id ? `${detail.display_name || ""} (${detail.user_id})` : "未认证"}
+            </Descriptions.Item>
+            <Descriptions.Item label="角色">{detail.role || "-"}</Descriptions.Item>
+            <Descriptions.Item label="模块 / 动作">
+              {detail.module_label || detail.module} / {detail.action_label || detail.action}
+            </Descriptions.Item>
+            <Descriptions.Item label="目标">
+              {detail.target_id ? (
+                <>
+                  {detail.target_name || detail.target_id}
+                  <span className="ml-1 text-xs text-gray-400">({detail.target_type})</span>
+                </>
+              ) : (
+                "-"
+              )}
+            </Descriptions.Item>
+            <Descriptions.Item label="请求">
+              <span className="font-mono text-xs">
+                {detail.method} {detail.url}
+              </span>
+            </Descriptions.Item>
+            <Descriptions.Item label="结果">{detail.status_code ?? "-"}</Descriptions.Item>
+            {detail.error_message && (
+              <Descriptions.Item label="错误">
+                <span className="break-all font-mono text-xs text-red-600">{detail.error_message}</span>
+              </Descriptions.Item>
+            )}
+            <Descriptions.Item label="来源 IP">
+              <span className="font-mono text-xs">{detail.ip_address || "-"}</span>
+            </Descriptions.Item>
+            <Descriptions.Item label="User-Agent">
+              <span className="break-all text-xs text-gray-500">{detail.user_agent || "-"}</span>
+            </Descriptions.Item>
+            <Descriptions.Item label="Request ID">
+              {detail.request_id ? (
+                <Tooltip title="可在后端结构化日志中用它定位同一次请求">
+                  <span className="break-all font-mono text-xs">{detail.request_id}</span>
+                </Tooltip>
+              ) : (
+                "-"
+              )}
+            </Descriptions.Item>
+            {detail.details && (
+              <Descriptions.Item label="变更详情">
+                <pre className="max-h-60 overflow-auto rounded bg-gray-50 p-2 text-xs">
+                  {JSON.stringify(detail.details, null, 2)}
+                </pre>
+              </Descriptions.Item>
+            )}
+          </Descriptions>
+        )}
+      </Drawer>
+    </div>
+  );
+}
diff --git a/frontend/src/pages/admin/AdminProductsPage.tsx b/frontend/src/pages/admin/AdminProductsPage.tsx
index 901f044..2cca6ad 100644
--- a/frontend/src/pages/admin/AdminProductsPage.tsx
+++ b/frontend/src/pages/admin/AdminProductsPage.tsx
@@ -13,7 +13,7 @@ import {
 } from "../../services/printApi";
 import { useToast } from "../../components/ui/Toast";
 import { useAuth } from "../../contexts/AuthContext";
-import { getStatusConfig, lifecycleBadge } from "../../constants/task";
+import { getStatusConfig, lifecycleBadge, isAdminRole } from "../../constants/task";
 import { extractErrorMessage } from "../../utils/errorMessage";
 
 const QR_BASE = "/api/v1/products/qrcode";
@@ -31,7 +31,7 @@ interface ProductGroup { groupKey: string; products: ProductResponse[]; allInWar
 export default function AdminProductsPage() {
   const { toast } = useToast();
   const { user: authUser } = useAuth();
-  const isAdmin = authUser?.role === "SUPER_ADMIN" || authUser?.role === "SUPERVISOR";
+  const isAdmin = isAdminRole(authUser?.role);
   const [products, setProducts] = useState<ProductResponse[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
diff --git a/frontend/src/services/auditApi.ts b/frontend/src/services/auditApi.ts
new file mode 100644
index 0000000..195cab7
--- /dev/null
+++ b/frontend/src/services/auditApi.ts
@@ -0,0 +1,77 @@
+/** 操作审计日志 API */
+import api from "./api";
+
+export interface AuditLogItem {
+  id: string;
+  user_id: string | null;
+  display_name: string | null;
+  role: string | null;
+
+  action: string;
+  /** 服务端补的中文标签，前端不再各自维护枚举映射 */
+  action_label: string | null;
+  module: string;
+  module_label: string | null;
+
+  target_type: string | null;
+  target_id: string | null;
+  target_name: string | null;
+  details: Record<string, unknown> | null;
+
+  ip_address: string | null;
+  user_agent: string | null;
+  method: string | null;
+  url: string | null;
+  status_code: number | null;
+  error_message: string | null;
+
+  /** 拿着它可在后端结构化日志中定位同一次请求 */
+  request_id: string | null;
+
+  created_at: string;
+}
+
+export interface AuditLogListResponse {
+  items: AuditLogItem[];
+  total: number;
+}
+
+export interface AuditOption {
+  value: string;
+  label: string;
+}
+
+export interface AuditOptionsResponse {
+  modules: AuditOption[];
+  actions: AuditOption[];
+}
+
+export interface AuditLogQuery {
+  user_id?: string;
+  module?: string;
+  action?: string;
+  target_id?: string;
+  request_id?: string;
+  status_code?: number;
+  /** YYYY-MM-DD */
+  start_date?: string;
+  /** YYYY-MM-DD（含当天） */
+  end_date?: string;
+  page?: number;
+  page_size?: number;
+}
+
+/** 分页查询审计日志（按时间倒序） */
+export async function fetchAuditLogs(q: AuditLogQuery = {}): Promise<AuditLogListResponse> {
+  const params = Object.fromEntries(
+    Object.entries(q).filter(([, v]) => v !== undefined && v !== null && v !== "")
+  );
+  const { data } = await api.get<AuditLogListResponse>("/audit/logs", { params });
+  return data;
+}
+
+/** 获取模块/动作筛选项 */
+export async function fetchAuditOptions(): Promise<AuditOptionsResponse> {
+  const { data } = await api.get<AuditOptionsResponse>("/audit/options");
+  return data;
+}