diff --git a/vehicle-data-platform/apps/web/src/App.tsx b/vehicle-data-platform/apps/web/src/App.tsx
index 3a1fbfa2..2859ac83 100644
--- a/vehicle-data-platform/apps/web/src/App.tsx
+++ b/vehicle-data-platform/apps/web/src/App.tsx
@@ -20,6 +20,9 @@ export default function App() {
   const [analysisVin, setAnalysisVin] = useState(initialVehicleKey);
   const [activeProtocol, setActiveProtocol] = useState(initialRoute.protocol ?? '');
   const [vehicleFilters, setVehicleFilters] = useState<Record<string, string>>(initialRoute.filters ?? {});
+  const [qualityFilters, setQualityFilters] = useState<Record<string, string>>(
+    initialRoute.page === 'quality' ? qualityFiltersFromRoute(initialRoute) : {}
+  );
   const [linkIssueCount, setLinkIssueCount] = useState<number | null>(null);
   const [currentVehicleStatus, setCurrentVehicleStatus] = useState<VehicleServiceStatus | undefined>();
   const [currentVehicleLabel, setCurrentVehicleLabel] = useState('');
@@ -87,6 +90,9 @@ export default function App() {
       if (route.page === 'vehicles') {
         setVehicleFilters(route.filters ?? {});
       }
+      if (route.page === 'quality') {
+        setQualityFilters(qualityFiltersFromRoute(route));
+      }
       setActiveProtocol(route.protocol ?? '');
     };
     window.addEventListener('hashchange', applyHashRoute);
@@ -110,6 +116,10 @@ export default function App() {
       replaceHash(page, analysisVin, activeProtocol);
       return;
     }
+    if (page === 'quality') {
+      replaceQualityHash(qualityFilters);
+      return;
+    }
     replaceHash(page, undefined, undefined, page === 'vehicles' ? vehicleFilters : undefined);
   };
 
@@ -124,6 +134,21 @@ export default function App() {
     replaceHash('vehicles', undefined, undefined, filters);
   };
 
+  const replaceQualityHash = (filters: Record<string, string> = {}) => {
+    const keyword = filters.keyword;
+    const protocol = filters.protocol;
+    const issueFilters: Record<string, string> = {};
+    if (filters.issueType) {
+      issueFilters.issueType = filters.issueType;
+    }
+    replaceHash('quality', keyword, protocol, issueFilters);
+  };
+
+  const updateQualityFilters = (filters: Record<string, string> = {}) => {
+    setQualityFilters(filters);
+    replaceQualityHash(filters);
+  };
+
   const openVehicle = async (keyword: string, protocol?: string) => {
     const lookupKey = keyword.trim();
     const nextProtocol = protocol?.trim() ?? '';
@@ -188,7 +213,7 @@ export default function App() {
     detail: <VehicleDetail vin={activeVin} protocol={activeProtocol} onOpenHistory={openHistoryForVehicle} onOpenMileage={openMileageForVehicle} onQueryChange={updateVehicleDetailQuery} />,
     history: <History initialVin={analysisVin} initialProtocol={activeProtocol} onOpenVehicle={openVehicle} />,
     mileage: <Mileage initialVin={analysisVin} initialProtocol={activeProtocol} onOpenVehicle={openVehicle} />,
-    quality: <Quality onOpenVehicle={openVehicle} onHealthLoaded={(health) => setLinkIssueCount(health.linkHealth.filter((item) => item.status !== 'ok').length)} />
+    quality: <Quality onOpenVehicle={openVehicle} onHealthLoaded={(health) => setLinkIssueCount(health.linkHealth.filter((item) => item.status !== 'ok').length)} onFiltersChange={updateQualityFilters} initialFilters={qualityFilters} />
   };
 
   return (
@@ -198,6 +223,14 @@ export default function App() {
   );
 }
 
+function qualityFiltersFromRoute(route: ReturnType<typeof parseAppHash>): Record<string, string> {
+  return {
+    ...(route.keyword ? { keyword: route.keyword } : {}),
+    ...(route.protocol ? { protocol: route.protocol } : {}),
+    ...(route.filters?.issueType ? { issueType: route.filters.issueType } : {})
+  };
+}
+
 function serviceStatusFromOverview(overview: VehicleServiceOverview): VehicleServiceStatus {
   const sourceCount = overview.sourceCount;
   const onlineSourceCount = overview.onlineSourceCount;
diff --git a/vehicle-data-platform/apps/web/src/domain/appRoute.test.ts b/vehicle-data-platform/apps/web/src/domain/appRoute.test.ts
index 114a6dde..5e4c3af7 100644
--- a/vehicle-data-platform/apps/web/src/domain/appRoute.test.ts
+++ b/vehicle-data-platform/apps/web/src/domain/appRoute.test.ts
@@ -23,6 +23,17 @@ describe('parseAppHash', () => {
     });
   });
 
+  test('parses quality governance filters from hash query', () => {
+    expect(parseAppHash('#/quality?keyword=%E7%B2%A4A&protocol=VEHICLE_SERVICE&issueType=NO_SOURCE')).toEqual({
+      page: 'quality',
+      keyword: '粤A',
+      protocol: 'VEHICLE_SERVICE',
+      filters: {
+        issueType: 'NO_SOURCE'
+      }
+    });
+  });
+
   test('ignores unknown pages', () => {
     expect(parseAppHash('#/unknown?keyword=VIN001')).toEqual({});
   });
@@ -37,6 +48,10 @@ describe('buildAppHash', () => {
     expect(buildAppHash({ page: 'vehicles', filters: { coverage: 'multi', serviceStatus: 'degraded' } })).toBe('#/vehicles?coverage=multi&serviceStatus=degraded');
   });
 
+  test('builds shareable quality hash with filters', () => {
+    expect(buildAppHash({ page: 'quality', keyword: '粤A', protocol: 'VEHICLE_SERVICE', filters: { issueType: 'NO_SOURCE' } })).toBe('#/quality?keyword=%E7%B2%A4A&protocol=VEHICLE_SERVICE&issueType=NO_SOURCE');
+  });
+
   test('builds page-only hash when keyword is empty', () => {
     expect(buildAppHash({ page: 'quality', keyword: '' })).toBe('#/quality');
   });
diff --git a/vehicle-data-platform/apps/web/src/domain/appRoute.ts b/vehicle-data-platform/apps/web/src/domain/appRoute.ts
index 56716c4b..9b7d6a65 100644
--- a/vehicle-data-platform/apps/web/src/domain/appRoute.ts
+++ b/vehicle-data-platform/apps/web/src/domain/appRoute.ts
@@ -9,7 +9,7 @@ export type AppRoute = {
   filters?: Record<string, string>;
 };
 
-const filterKeys = ['coverage', 'serviceStatus', 'online', 'bindingStatus'] as const;
+const filterKeys = ['coverage', 'serviceStatus', 'online', 'bindingStatus', 'issueType'] as const;
 
 export function parseAppHash(hash: string): AppRoute {
   const normalized = hash.trim().replace(/^#\/?/, '');
diff --git a/vehicle-data-platform/apps/web/src/pages/Quality.tsx b/vehicle-data-platform/apps/web/src/pages/Quality.tsx
index 19aafee8..719e83c0 100644
--- a/vehicle-data-platform/apps/web/src/pages/Quality.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Quality.tsx
@@ -59,10 +59,14 @@ async function copyText(value: string, label: string) {
 
 export function Quality({
   onOpenVehicle,
-  onHealthLoaded
+  onHealthLoaded,
+  onFiltersChange,
+  initialFilters = {}
 }: {
   onOpenVehicle: (vin: string) => void;
   onHealthLoaded?: (health: OpsHealth) => void;
+  onFiltersChange?: (filters: Record<string, string>) => void;
+  initialFilters?: Record<string, string>;
 }) {
   const [issues, setIssues] = useState<QualityIssueRow[]>([]);
   const [summary, setSummary] = useState<QualitySummary>(emptySummary);
@@ -70,7 +74,7 @@ export function Quality({
   const [loadingIssues, setLoadingIssues] = useState(true);
   const [loadingSummary, setLoadingSummary] = useState(true);
   const [loadingHealth, setLoadingHealth] = useState(true);
-  const [filters, setFilters] = useState<Record<string, string>>({});
+  const [filters, setFilters] = useState<Record<string, string>>(initialFilters);
   const [pagination, setPagination] = useState({ currentPage: 1, pageSize: 20, total: 0 });
   const primaryIssueType = summary.issueTypes[0]?.name;
 
@@ -108,13 +112,15 @@ export function Quality({
   };
 
   useEffect(() => {
-    loadSummary({});
-    loadIssues({}, 1, pagination.pageSize);
+    setFilters(initialFilters);
+    loadSummary(initialFilters);
+    loadIssues(initialFilters, 1, pagination.pageSize);
     loadHealth();
-  }, []);
+  }, [JSON.stringify(initialFilters)]);
 
   const applyFilters = (nextFilters: Record<string, string>) => {
     setFilters(nextFilters);
+    onFiltersChange?.(nextFilters);
     loadSummary(nextFilters);
     loadIssues(nextFilters, 1, pagination.pageSize);
   };
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 2b555a15..679172f1 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -795,6 +795,65 @@ test('drills into quality issues by issue type', async () => {
   expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('/api/quality/summary?issueType=NO_SOURCE'), undefined);
 });
 
+test('applies shareable quality filters from hash', async () => {
+  window.history.replaceState(null, '', '/#/quality?keyword=%E7%B2%A4A&protocol=VEHICLE_SERVICE&issueType=NO_SOURCE');
+  const fetchMock = 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/quality/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            issueVehicleCount: 1,
+            issueRecordCount: 1,
+            errorCount: 0,
+            warningCount: 1,
+            protocols: [{ name: 'VEHICLE_SERVICE', count: 1 }],
+            issueTypes: [{ name: 'NO_SOURCE', count: 1 }]
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/quality/issues')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { items: [], total: 1, limit: 20, offset: 0 },
+          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 />);
+
+  await waitFor(() => {
+    expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('/api/quality/issues?keyword=%E7%B2%A4A&protocol=VEHICLE_SERVICE&issueType=NO_SOURCE&limit=20&offset=0'), undefined);
+  });
+  expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('/api/quality/summary?keyword=%E7%B2%A4A&protocol=VEHICLE_SERVICE&issueType=NO_SOURCE'), undefined);
+});
+
 test('opens vehicle detail from shareable hash', async () => {
   window.history.replaceState(null, '', '/#/detail?keyword=%E7%B2%A4AG18312');
   vi.spyOn(globalThis, 'fetch').mockResolvedValue({