diff --git a/vehicle-data-platform/apps/web/src/pages/History.tsx b/vehicle-data-platform/apps/web/src/pages/History.tsx
index 051634d3..5e9c4fd0 100644
--- a/vehicle-data-platform/apps/web/src/pages/History.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/History.tsx
@@ -1,4 +1,4 @@
-import { Button, Card, Form, Select, SideSheet, Space, Table, Tabs, Toast, Typography } from '@douyinfe/semi-ui';
+import { Button, Card, Form, Select, SideSheet, Space, Table, Tabs, Tag, Toast, Typography } from '@douyinfe/semi-ui';
 import { IconRefresh, IconSearch } from '@douyinfe/semi-icons';
 import { useEffect, useMemo, useState } from 'react';
 import { api, type RawFrameQuery } from '../api/client';
@@ -132,6 +132,11 @@ export function History({ initialVin, initialProtocol, onOpenVehicle }: { initia
           </Button>
         )}
       />
+      <div className="vp-scope-bar">
+        <span className="vp-scope-label">当前车辆：{currentVehicleKeyword || '-'}</span>
+        <Tag color={currentProtocol ? 'blue' : 'green'}>当前来源：{currentProtocol || '全部来源'}</Tag>
+        <Typography.Text type="tertiary">历史位置和 RAW 帧按当前车辆与来源范围查询。</Typography.Text>
+      </div>
       <Card bordered>
         <Form key={`${filters.keyword ?? ''}-${filters.protocol ?? ''}-${filters.includeFields ? 'fields' : 'light'}`} initValues={filters} layout="horizontal" onSubmit={(values) => submit(values)}>
           <Form.Input field="keyword" label="车辆关键词" placeholder="VIN / 车牌 / 手机号" style={{ width: 260 }} />
diff --git a/vehicle-data-platform/apps/web/src/pages/Mileage.tsx b/vehicle-data-platform/apps/web/src/pages/Mileage.tsx
index 34e8a0ba..b8184c22 100644
--- a/vehicle-data-platform/apps/web/src/pages/Mileage.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Mileage.tsx
@@ -1,4 +1,4 @@
-import { Button, Card, Form, Select, Space, Table, Tag, Toast } from '@douyinfe/semi-ui';
+import { Button, Card, Form, Select, Space, Table, Tag, Toast, Typography } from '@douyinfe/semi-ui';
 import { useEffect, useState } from 'react';
 import { api } from '../api/client';
 import type { DailyMileageRow, MileageSummary } from '../api/types';
@@ -79,6 +79,11 @@ export function Mileage({ initialVin, initialProtocol, onOpenVehicle }: { initia
           </Button>
         )}
       />
+      <div className="vp-scope-bar">
+        <span className="vp-scope-label">当前车辆：{currentVehicleKeyword || '-'}</span>
+        <Tag color={currentProtocol ? 'blue' : 'green'}>当前来源：{currentProtocol || '全部来源'}</Tag>
+        <Typography.Text type="tertiary">里程统计按当前车辆与来源范围汇总。</Typography.Text>
+      </div>
       <Card bordered>
         <Form key={filters.keyword ?? ''} initValues={filters} layout="horizontal" onSubmit={(values) => {
           const nextFilters = values as Record<string, string>;
diff --git a/vehicle-data-platform/apps/web/src/test/App.test.tsx b/vehicle-data-platform/apps/web/src/test/App.test.tsx
index 1bb86380..a345d7e5 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -938,6 +938,48 @@ test('applies protocol from shareable history hash to API requests', async () =>
     method: 'POST',
     body: expect.stringContaining('"protocol":"JT808"')
   }));
+  expect(screen.getByText('当前车辆：粤AG18312')).toBeInTheDocument();
+  expect(screen.getByText('当前来源：JT808')).toBeInTheDocument();
+});
+
+test('shows vehicle and source scope on mileage hash', async () => {
+  window.history.replaceState(null, '', '/#/mileage?keyword=VIN-MILEAGE-001&protocol=GB32960');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/ops/health')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/mileage/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { vehicleCount: 1, recordCount: 2, sourceCount: 1, totalMileageKm: 12.3, averageMileagePerVin: 12.3 },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: { items: [], total: 0, limit: 20, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  expect(await screen.findByText('当前车辆：VIN-MILEAGE-001')).toBeInTheDocument();
+  expect(screen.getByText('当前来源：GB32960')).toBeInTheDocument();
 });
 
 test('keeps row protocol when opening vehicle service from history results', async () => {