diff --git a/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.test.tsx b/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.test.tsx
index 05d68058..9fe7a2f8 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.test.tsx
@@ -1,14 +1,14 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { cleanup, fireEvent, render, screen, waitFor } from '@testing-library/react';
 import { afterEach, beforeEach, expect, test, vi } from 'vitest';
-import { MemoryRouter } from 'react-router-dom';
+import { MemoryRouter, useNavigate } from 'react-router-dom';
 import type { TrackPlaybackResponse } from '../../api/types';
 import TrackPage from './TrackPage';
 import { ROUTER_FUTURE } from '../routing/routerConfig';
 
 const mocks = vi.hoisted(() => ({ trackPlayback: vi.fn(), reverseGeocode: vi.fn(), vehicles: vi.fn() }));
 vi.mock('../../api/client', () => ({ api: mocks }));
-vi.mock('../map/TrackMap', () => ({ TrackMap: ({ activeIndex, followDurationMs }: { activeIndex: number; followDurationMs: number }) => <div data-testid="track-map" data-active-index={activeIndex} data-follow-duration={followDurationMs} /> }));
+vi.mock('../map/TrackMap', () => ({ TrackMap: ({ activeIndex, followDurationMs, points }: { activeIndex: number; followDurationMs: number; points: unknown[] }) => <div data-testid="track-map" data-active-index={activeIndex} data-follow-duration={followDurationMs} data-point-count={points.length} /> }));
 
 const track = {
   vin: 'LTEST000000000001', plate: '粤A12345', total: 3, truncated: false, sampled: false, asOf: '2026-07-15T08:00:00Z',
@@ -38,6 +38,34 @@ beforeEach(() => {
 });
 afterEach(() => { cleanup(); Object.values(mocks).forEach((mock) => mock.mockReset()); });
 
+function TrackNavigationHarness() {
+  const navigate = useNavigate();
+  return <><button type="button" onClick={() => navigate('/tracks')}>清空轨迹路由</button><button type="button" onClick={() => navigate(-1)}>后退轨迹路由</button><button type="button" onClick={() => navigate(1)}>前进轨迹路由</button><TrackPage /></>;
+}
+
+test('keeps committed track criteria authoritative to same-route navigation and browser history', async () => {
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  render(<QueryClientProvider client={client}><MemoryRouter future={ROUTER_FUTURE} initialEntries={['/tracks?keyword=LTEST000000000001&dateFrom=2026-07-15T00:00&dateTo=2026-07-15T23:59']}><TrackNavigationHarness /></MemoryRouter></QueryClientProvider>);
+
+  expect((await screen.findAllByText('粤A12345')).length).toBeGreaterThan(0);
+  expect(screen.getByTestId('track-map')).toHaveAttribute('data-point-count', '3');
+  expect(screen.getByRole('textbox', { name: '搜索轨迹车辆' })).toHaveValue('LTEST000000000001');
+
+  fireEvent.click(screen.getByRole('button', { name: '清空轨迹路由' }));
+  expect(await screen.findByText('先选择车辆，再开始轨迹回放')).toBeInTheDocument();
+  expect(screen.getByTestId('track-map')).toHaveAttribute('data-point-count', '0');
+  expect(screen.getByRole('textbox', { name: '搜索轨迹车辆' })).toHaveValue('');
+
+  fireEvent.click(screen.getByRole('button', { name: '后退轨迹路由' }));
+  expect((await screen.findAllByText('粤A12345')).length).toBeGreaterThan(0);
+  expect(screen.getByTestId('track-map')).toHaveAttribute('data-point-count', '3');
+  expect(screen.getByRole('textbox', { name: '搜索轨迹车辆' })).toHaveValue('LTEST000000000001');
+
+  fireEvent.click(screen.getByRole('button', { name: '前进轨迹路由' }));
+  expect(await screen.findByText('先选择车辆，再开始轨迹回放')).toBeInTheDocument();
+  expect(screen.getByTestId('track-map')).toHaveAttribute('data-point-count', '0');
+});
+
 test('renders a map-first replay workspace and connects stop, event, and panel interactions', async () => {
   const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
   const view = render(<QueryClientProvider client={client}><MemoryRouter future={ROUTER_FUTURE} initialEntries={['/tracks?keyword=LTEST000000000001&dateFrom=2026-07-15T00:00&dateTo=2026-07-15T23:59']}><TrackPage /></MemoryRouter></QueryClientProvider>);
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.tsx b/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.tsx
index 41933c72..84966778 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/TrackPage.tsx
@@ -188,14 +188,17 @@ const SegmentRail = memo(function SegmentRail({ track, onSelectIndex }: { track:
 export default function TrackPage() {
   const [searchParams, setSearchParams] = useSearchParams();
   const fallback = useMemo(defaultTrackWindow, []);
-  const initialDraft = useMemo<Draft>(() => ({
-    keyword: searchParams.get('vin') || searchParams.get('keyword') || '',
-    dateFrom: searchParams.get('dateFrom') || fallback.dateFrom,
-    dateTo: searchParams.get('dateTo') || fallback.dateTo,
-    protocol: searchParams.get('protocol') || ''
-  }), []);
-  const [draft, setDraft] = useState(initialDraft);
-  const [criteria, setCriteria] = useState(initialDraft);
+  const routeKey = searchParams.toString();
+  const criteria = useMemo<Draft>(() => {
+    const params = new URLSearchParams(routeKey);
+    return {
+      keyword: params.get('vin') || params.get('keyword') || '',
+      dateFrom: params.get('dateFrom') || fallback.dateFrom,
+      dateTo: params.get('dateTo') || fallback.dateTo,
+      protocol: params.get('protocol') || ''
+    };
+  }, [fallback, routeKey]);
+  const [draft, setDraft] = useState(criteria);
   const [activeIndex, setActiveIndex] = useState(0);
   const [playing, setPlaying] = useState(false);
   const [playbackSpeed, setPlaybackSpeed] = useState<PlaybackSpeed>(1);
@@ -224,6 +227,7 @@ export default function TrackPage() {
   const currentAddressPoint = useMemo(() => trackAddressCoordinate(current?.longitude, current?.latitude), [current?.latitude, current?.longitude]);
   const [addressPoint, setAddressPoint] = useState<TrackAddressCoordinate>();
 
+  useEffect(() => { setDraft(criteria); }, [criteria]);
   useEffect(() => {
     if (playing || !currentAddressPoint) return;
     const timer = window.setTimeout(() => setAddressPoint(currentAddressPoint), TRACK_ADDRESS_SETTLE_MS);
@@ -264,7 +268,6 @@ export default function TrackPage() {
     const keyword = draft.keyword.trim();
     if (!keyword) return;
     const next = { ...draft, keyword };
-    setCriteria(next);
     const url = new URLSearchParams({ keyword });
     if (next.dateFrom) url.set('dateFrom', next.dateFrom);
     if (next.dateTo) url.set('dateTo', next.dateTo);