diff --git a/vehicle-data-platform/apps/web/src/App.tsx b/vehicle-data-platform/apps/web/src/App.tsx
index 2a1872a1..4a6440f0 100644
--- a/vehicle-data-platform/apps/web/src/App.tsx
+++ b/vehicle-data-platform/apps/web/src/App.tsx
@@ -20,7 +20,9 @@ export default function App() {
   const [analysisVin, setAnalysisVin] = useState(initialVehicleKey);
   const [activeProtocol, setActiveProtocol] = useState(initialRoute.protocol ?? '');
   const [historyTab, setHistoryTab] = useState(initialRoute.filters?.tab ?? 'location');
-  const [vehicleFilters, setVehicleFilters] = useState<Record<string, string>>(initialRoute.filters ?? {});
+  const [vehicleFilters, setVehicleFilters] = useState<Record<string, string>>(
+    initialRoute.page === 'vehicles' ? vehicleFiltersFromRoute(initialRoute) : {}
+  );
   const [qualityFilters, setQualityFilters] = useState<Record<string, string>>(
     initialRoute.page === 'quality' ? qualityFiltersFromRoute(initialRoute) : {}
   );
@@ -89,7 +91,7 @@ export default function App() {
         }
       }
       if (route.page === 'vehicles') {
-        setVehicleFilters(route.filters ?? {});
+        setVehicleFilters(vehicleFiltersFromRoute(route));
       }
       if (route.page === 'quality') {
         setQualityFilters(qualityFiltersFromRoute(route));
@@ -122,18 +124,27 @@ export default function App() {
       replaceQualityHash(qualityFilters);
       return;
     }
-    replaceHash(page, undefined, undefined, page === 'vehicles' ? vehicleFilters : undefined);
+    if (page === 'vehicles') {
+      replaceVehicleHash(vehicleFilters);
+      return;
+    }
+    replaceHash(page);
   };
 
   const openVehicles = (filters: Record<string, string> = {}) => {
     setVehicleFilters(filters);
     setActivePage('vehicles');
-    replaceHash('vehicles', undefined, undefined, filters);
+    replaceVehicleHash(filters);
   };
 
   const updateVehicleFilters = (filters: Record<string, string> = {}) => {
     setVehicleFilters(filters);
-    replaceHash('vehicles', undefined, undefined, filters);
+    replaceVehicleHash(filters);
+  };
+
+  const replaceVehicleHash = (filters: Record<string, string> = {}) => {
+    const { keyword, protocol, ...restFilters } = filters;
+    replaceHash('vehicles', keyword, protocol, restFilters);
   };
 
   const replaceQualityHash = (filters: Record<string, string> = {}) => {
@@ -247,6 +258,14 @@ function qualityFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record
   };
 }
 
+function vehicleFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
+  return {
+    ...(route.keyword ? { keyword: route.keyword } : {}),
+    ...(route.protocol ? { protocol: route.protocol } : {}),
+    ...(route.filters ?? {})
+  };
+}
+
 function serviceStatusFromOverview(overview: VehicleServiceOverview): VehicleServiceStatus {
   const sourceCount = overview.sourceCount;
   const onlineSourceCount = overview.onlineSourceCount;
diff --git a/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx b/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
index b2d65883..b61e851c 100644
--- a/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Vehicles.tsx
@@ -47,7 +47,7 @@ export function Vehicles({
   onFiltersChange,
   initialFilters = {}
 }: {
-  onOpenVehicle: (vin: string) => void;
+  onOpenVehicle: (vin: string, protocol?: string) => void;
   onFiltersChange?: (filters: Record<string, string>) => void;
   initialFilters?: Record<string, string>;
 }) {
@@ -158,7 +158,7 @@ export function Vehicles({
       { title: '在线', width: 90, render: (_: unknown, row: VehicleCoverageRow) => <StatusTag status={row.online ? 'ok' : 'offline'} /> },
       { title: '最后在线', dataIndex: 'lastSeen', width: 170 },
       { title: '绑定', width: 90, render: (_: unknown, row: VehicleCoverageRow) => <Tag color={row.bindingStatus === 'bound' ? 'green' : 'orange'}>{row.bindingStatus === 'bound' ? '已绑定' : '未绑定'}</Tag> },
-      { title: '操作', width: 110, render: (_: unknown, row: VehicleCoverageRow) => <Button onClick={() => onOpenVehicle(row.vin)}>车辆服务</Button> }
+      { title: '操作', width: 110, render: (_: unknown, row: VehicleCoverageRow) => <Button onClick={() => onOpenVehicle(row.vin, filters.protocol)}>车辆服务</Button> }
     ],
     [filters, onOpenVehicle]
   );
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 acd5004e..4ee06974 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -2447,6 +2447,80 @@ test('shows vehicle service status in vehicle list', async () => {
   expect(screen.getByText('部分来源离线')).toBeInTheDocument();
 });
 
+test('opens vehicle service from source-filtered vehicle list with source evidence', async () => {
+  window.history.replaceState(null, '', '/#/vehicles?protocol=JT808');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/vehicles/coverage')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            items: [{
+              vin: 'VIN-LIST-JT808',
+              plate: '粤A列表1',
+              phone: '13307795425',
+              oem: 'G7s',
+              protocols: ['JT808'],
+              sourceCount: 1,
+              onlineSourceCount: 1,
+              online: true,
+              lastSeen: '2026-07-03 20:12:10',
+              bindingStatus: 'bound'
+            }],
+            total: 1,
+            limit: 20,
+            offset: 0
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/vehicle-service/overview')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            vin: 'VIN-LIST-JT808',
+            plate: '粤A列表1',
+            sourceCount: 1,
+            onlineSourceCount: 1,
+            coverageStatus: 'online',
+            primaryProtocol: 'JT808',
+            lastSeen: '2026-07-03 20:12:10',
+            historyCount: 0,
+            rawCount: 0,
+            mileageCount: 0,
+            qualityIssueCount: 0
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: path.includes('/api/ops/health')
+          ? { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } }
+          : { items: [], total: 0, limit: 20, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  expect(await screen.findByText('VIN-LIST-JT808')).toBeInTheDocument();
+  fireEvent.click(screen.getByRole('button', { name: '车辆服务' }));
+
+  await waitFor(() => {
+    expect(window.location.hash).toBe('#/detail?keyword=VIN-LIST-JT808&protocol=JT808');
+  });
+});
+
 test('filters vehicle list by service status', async () => {
   window.history.replaceState(null, '', '/#/vehicles');
   const fetchMock = vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {