diff --git a/src/pages/AuthFilesPage.module.scss b/src/pages/AuthFilesPage.module.scss
index 6f09678..f7d9ab7 100644
--- a/src/pages/AuthFilesPage.module.scss
+++ b/src/pages/AuthFilesPage.module.scss
@@ -250,6 +250,78 @@
   border-color: var(--failure-badge-border, #fca5a5);
 }
 
+// 状态监测栏
+.statusBar {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 4px 0;
+  max-width: 280px;
+}
+
+.statusBlocks {
+  display: flex;
+  gap: 2px;
+  flex: 1;
+  min-width: 180px;
+}
+
+.statusBlock {
+  flex: 1;
+  height: 8px;
+  border-radius: 2px;
+  min-width: 6px;
+  transition: transform 0.15s ease, opacity 0.15s ease;
+
+  &:hover {
+    transform: scaleY(1.5);
+    opacity: 0.85;
+  }
+}
+
+.statusBlockSuccess {
+  background-color: var(--success-color, #22c55e);
+}
+
+.statusBlockFailure {
+  background-color: var(--danger-color, #ef4444);
+}
+
+.statusBlockMixed {
+  background-color: var(--warning-color, #f59e0b);
+}
+
+.statusBlockIdle {
+  background-color: var(--border-secondary, #e5e7eb);
+}
+
+.statusRate {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  font-size: 12px;
+  font-weight: 600;
+  white-space: nowrap;
+  padding: 4px 8px;
+  border-radius: 6px;
+  background: var(--bg-tertiary);
+}
+
+.statusRateHigh {
+  color: var(--success-badge-text, #065f46);
+  background: var(--success-badge-bg, #d1fae5);
+}
+
+.statusRateMedium {
+  color: var(--warning-text, #92400e);
+  background: var(--warning-bg, #fef3c7);
+}
+
+.statusRateLow {
+  color: var(--failure-badge-text, #991b1b);
+  background: var(--failure-badge-bg, #fee2e2);
+}
+
 .cardActions {
   display: flex;
   gap: $spacing-xs;
diff --git a/src/pages/AuthFilesPage.tsx b/src/pages/AuthFilesPage.tsx
index 232aee1..87f8263 100644
--- a/src/pages/AuthFilesPage.tsx
+++ b/src/pages/AuthFilesPage.tsx
@@ -11,7 +11,8 @@ import { useAuthStore, useNotificationStore, useThemeStore } from '@/stores';
 import { authFilesApi, usageApi } from '@/services/api';
 import { apiClient } from '@/services/api/client';
 import type { AuthFileItem } from '@/types';
-import type { KeyStats, KeyStatBucket } from '@/utils/usage';
+import type { KeyStats, KeyStatBucket, UsageDetail } from '@/utils/usage';
+import { collectUsageDetails, calculateStatusBarData } from '@/utils/usage';
 import { formatFileSize } from '@/utils/format';
 import styles from './AuthFilesPage.module.scss';
 
@@ -143,6 +144,7 @@ export function AuthFilesPage() {
   const [deleting, setDeleting] = useState<string | null>(null);
   const [deletingAll, setDeletingAll] = useState(false);
   const [keyStats, setKeyStats] = useState<KeyStats>({ bySource: {}, byAuthIndex: {} });
+  const [usageDetails, setUsageDetails] = useState<UsageDetail[]>([]);
 
   // 详情弹窗相关
   const [detailModalOpen, setDetailModalOpen] = useState(false);
@@ -195,11 +197,16 @@ export function AuthFilesPage() {
     }
   }, [t]);
 
-  // 加载 key 统计
+  // 加载 key 统计和 usage 明细
   const loadKeyStats = useCallback(async () => {
     try {
-      const stats = await usageApi.getKeyStats();
+      const usageResponse = await usageApi.getUsage();
+      const usageData = usageResponse?.usage ?? usageResponse;
+      const stats = await usageApi.getKeyStats(usageData);
       setKeyStats(stats);
+      // 收集 usage 明细用于状态栏
+      const details = collectUsageDetails(usageData);
+      setUsageDetails(details);
     } catch {
       // 静默失败
     }
@@ -570,6 +577,50 @@ export function AuthFilesPage() {
     </div>
   );
 
+  // 渲染状态监测栏
+  const renderStatusBar = (item: AuthFileItem) => {
+    // 认证文件使用 authIndex 来匹配 usage 数据
+    const rawAuthIndex = item['auth_index'] ?? item.authIndex;
+    const authIndexKey = normalizeAuthIndexValue(rawAuthIndex);
+
+    // 过滤出属于该认证文件的 usage 明细
+    const filteredDetails = usageDetails.filter((detail) => {
+      const detailAuthIndex = normalizeAuthIndexValue(detail.auth_index);
+      return detailAuthIndex !== null && detailAuthIndex === authIndexKey;
+    });
+
+    const statusData = calculateStatusBarData(filteredDetails);
+    const hasData = statusData.totalSuccess + statusData.totalFailure > 0;
+    const rateClass = !hasData
+      ? ''
+      : statusData.successRate >= 90
+        ? styles.statusRateHigh
+        : statusData.successRate >= 50
+          ? styles.statusRateMedium
+          : styles.statusRateLow;
+
+    return (
+      <div className={styles.statusBar}>
+        <div className={styles.statusBlocks}>
+          {statusData.blocks.map((state, idx) => {
+            const blockClass =
+              state === 'success'
+                ? styles.statusBlockSuccess
+                : state === 'failure'
+                  ? styles.statusBlockFailure
+                  : state === 'mixed'
+                    ? styles.statusBlockMixed
+                    : styles.statusBlockIdle;
+            return <div key={idx} className={`${styles.statusBlock} ${blockClass}`} />;
+          })}
+        </div>
+        <span className={`${styles.statusRate} ${rateClass}`}>
+          {hasData ? `${statusData.successRate.toFixed(1)}%` : '--'}
+        </span>
+      </div>
+    );
+  };
+
   // 渲染单个认证文件卡片
   const renderFileCard = (item: AuthFileItem) => {
       const fileStats = resolveAuthFileStats(item, keyStats);
@@ -606,6 +657,9 @@ export function AuthFilesPage() {
           </span>
         </div>
 
+        {/* 状态监测栏 */}
+        {renderStatusBar(item)}
+
         <div className={styles.cardActions}>
           {isRuntimeOnly ? (
             <div className={styles.virtualBadge}>{t('auth_files.type_virtual') || '虚拟认证文件'}</div>