diff --git a/vehicle-data-platform/apps/web/src/pages/Realtime.tsx b/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
index 19212f95..55b50ef4 100644
--- a/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/Realtime.tsx
@@ -43,6 +43,20 @@ function serviceStatusWeight(row: VehicleRealtimeRow) {
   return 1;
 }
 
+function sourceIssueTags(row: VehicleRealtimeRow) {
+  const tags = (row.sourceStatus ?? [])
+    .filter((source) => !source.online || !source.hasRealtime)
+    .map((source) => `${source.protocol} ${source.hasRealtime ? '离线' : '未接入'}`) ?? [];
+  if (tags.length > 0) return tags;
+  if (row.onlineSourceCount < row.sourceCount) return ['来源缺失'];
+  return [];
+}
+
+function hasSourceIssue(row: VehicleRealtimeRow) {
+  const severity = row.serviceStatus?.severity;
+  return severity === 'warning' || severity === 'error' || row.onlineSourceCount < row.sourceCount || sourceIssueTags(row).length > 0;
+}
+
 function isValidCoordinate(row: VehicleRealtimeRow) {
   return Number.isFinite(row.longitude) && Number.isFinite(row.latitude) && row.longitude !== 0 && row.latitude !== 0;
 }
@@ -126,6 +140,14 @@ export function Realtime({
   const locatedCount = rows.filter(isValidCoordinate).length;
   const degradedCount = rows.filter((row) => row.onlineSourceCount < row.sourceCount).length;
   const primaryProtocols = new Set(rows.map((row) => row.primaryProtocol).filter(Boolean));
+  const sourceIssueRows = rows
+    .filter((row) => canOpenVehicle(row.vin) && hasSourceIssue(row))
+    .sort((a, b) => {
+      const statusDelta = serviceStatusWeight(b) - serviceStatusWeight(a);
+      if (statusDelta !== 0) return statusDelta;
+      return String(b.lastSeen ?? '').localeCompare(String(a.lastSeen ?? ''));
+    })
+    .slice(0, 4);
   const mapServiceRows = rows
     .filter((row) => isValidCoordinate(row) && canOpenVehicle(row.vin))
     .sort((a, b) => {
@@ -217,6 +239,43 @@ export function Realtime({
             <Typography.Text type="secondary">
               高德 Web JS Key 和安全密钥通过运行环境配置，前端只读取公开 Key；安全密钥后续走服务端代理，避免明文下发。
             </Typography.Text>
+            <div className="vp-source-consistency-panel">
+              <div className="vp-map-service-queue-title">多来源一致性检查</div>
+              {sourceIssueRows.length === 0 ? (
+                <Typography.Text type="tertiary">当前页车辆来源一致</Typography.Text>
+              ) : (
+                sourceIssueRows.map((row) => {
+                  const status = vehicleServiceStatus(row);
+                  return (
+                    <div key={`${row.vin}-${row.primaryProtocol}-consistency`} className="vp-map-service-item">
+                      <div className="vp-map-service-item-main">
+                        <div>
+                          <Typography.Text strong>{row.plate || row.vin}</Typography.Text>
+                          <Typography.Text type="tertiary" size="small">{row.vin}</Typography.Text>
+                        </div>
+                        <Tag color={status.color}>{status.label}</Tag>
+                      </div>
+                      <Space spacing={4} wrap>
+                        <Tag color="blue">{sourceEvidenceText(row)}</Tag>
+                        {sourceIssueTags(row).map((item) => (
+                          <Tag key={item} color="orange">一致性：{item}</Tag>
+                        ))}
+                      </Space>
+                      <Typography.Text type="secondary" size="small">
+                        一致性诊断：{row.serviceStatus?.detail || sourceEvidenceText(row)}
+                      </Typography.Text>
+                      <div className="vp-map-service-item-footer">
+                        <Typography.Text type="tertiary" size="small">{row.lastSeen || '-'}</Typography.Text>
+                        <Space spacing={4} wrap>
+                          <Button size="small" disabled={!onOpenQuality} onClick={() => openQualityEvidence(row)}>检查质量</Button>
+                          <Button size="small" onClick={() => onOpenVehicle(row.vin, filters.protocol || row.primaryProtocol)}>查看服务</Button>
+                        </Space>
+                      </div>
+                    </div>
+                  );
+                })
+              )}
+            </div>
             <div className="vp-map-service-queue">
               <div className="vp-map-service-queue-title">地图车辆服务队列</div>
               {mapServiceRows.length === 0 ? (
diff --git a/vehicle-data-platform/apps/web/src/styles/global.css b/vehicle-data-platform/apps/web/src/styles/global.css
index f8b1480a..938ed138 100644
--- a/vehicle-data-platform/apps/web/src/styles/global.css
+++ b/vehicle-data-platform/apps/web/src/styles/global.css
@@ -385,6 +385,14 @@ body {
   border-top: 1px solid var(--vp-border);
 }
 
+.vp-source-consistency-panel {
+  display: grid;
+  gap: 10px;
+  margin-top: 4px;
+  padding-top: 12px;
+  border-top: 1px solid var(--vp-border);
+}
+
 .vp-map-service-queue-title {
   color: var(--vp-text);
   font-size: 13px;
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 cb93bb06..931cd9e5 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -5289,6 +5289,108 @@ test('opens amap coordinate and trajectory playback from realtime map service qu
   expect(window.location.hash).toBe('#/history?keyword=VIN-MAP-LINK&protocol=GB32960');
 });
 
+test('surfaces multi-source realtime consistency issues with quality drilldown', async () => {
+  window.history.replaceState(null, '', '/#/realtime');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/realtime/vehicles')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            items: [{
+              vin: 'VIN-RT-CONSISTENCY',
+              plate: '粤A一致监控',
+              phone: '13307795425',
+              oem: 'G7s',
+              protocols: ['GB32960', 'JT808', 'YUTONG_MQTT'],
+              sourceStatus: [
+                { protocol: 'GB32960', online: true, lastSeen: '2026-07-03 20:12:10', hasRealtime: true, hasHistory: true, hasRaw: true, hasMileage: true },
+                { protocol: 'JT808', online: true, lastSeen: '2026-07-03 20:12:05', hasRealtime: true, hasHistory: true, hasRaw: true, hasMileage: true },
+                { protocol: 'YUTONG_MQTT', online: false, lastSeen: '2026-07-03 20:01:40', hasRealtime: true, hasHistory: false, hasRaw: true, hasMileage: false }
+              ],
+              sourceCount: 3,
+              onlineSourceCount: 2,
+              online: true,
+              primaryProtocol: 'GB32960',
+              longitude: 113.2,
+              latitude: 23.1,
+              speedKmh: 30,
+              socPercent: 78,
+              totalMileageKm: 119925,
+              lastSeen: '2026-07-03 20:12:10',
+              bindingStatus: 'bound',
+              serviceStatus: {
+                status: 'degraded',
+                severity: 'warning',
+                title: '来源不完整',
+                detail: 'YUTONG_MQTT 离线，GB32960/JT808 仍可支撑车辆服务',
+                sourceCount: 3,
+                onlineSourceCount: 2
+              }
+            }],
+            total: 1,
+            limit: 50,
+            offset: 0
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/quality/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { issueVehicleCount: 0, issueRecordCount: 0, errorCount: 0, warningCount: 0, protocols: [], issueTypes: [] },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/quality/issues')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { items: [], total: 0, limit: 50, offset: 0 },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    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;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: { items: [], total: 0, limit: 10, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  expect(await screen.findByText('多来源一致性检查')).toBeInTheDocument();
+  expect(screen.getAllByText('粤A一致监控').length).toBeGreaterThan(0);
+  expect(screen.getByText('一致性诊断：YUTONG_MQTT 离线，GB32960/JT808 仍可支撑车辆服务')).toBeInTheDocument();
+  expect(screen.getByText('一致性：YUTONG_MQTT 离线')).toBeInTheDocument();
+  fireEvent.click(screen.getByRole('button', { name: '检查质量' }));
+
+  await waitFor(() => {
+    expect(window.location.hash).toBe('#/quality?keyword=VIN-RT-CONSISTENCY&protocol=GB32960');
+  });
+});
+
 test('opens quality issues from realtime vehicle row with source evidence', async () => {
   window.history.replaceState(null, '', '/#/realtime?protocol=JT808');
   vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {