diff --git a/app/main.py b/app/main.py
index ad1e7f0..e3e63d9 100644
--- a/app/main.py
+++ b/app/main.py
@@ -19,7 +19,7 @@ from sqlmodel import Session
 from app.core.config import settings
 from app.core.seed import seed_providers
 from app.database import assets_engine, init_db
-from app.routers import agent, assets, monitor, providers, stats
+from app.routers import agent, assets, monitor, providers, stats, sync
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 STATIC_DIR = BASE_DIR / "static"
@@ -53,6 +53,7 @@ app.include_router(providers.router)
 app.include_router(stats.router)
 app.include_router(agent.router)
 app.include_router(monitor.router)
+app.include_router(sync.router)
 
 app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")
 
diff --git a/app/routers/sync.py b/app/routers/sync.py
new file mode 100644
index 0000000..13aaa27
--- /dev/null
+++ b/app/routers/sync.py
@@ -0,0 +1,19 @@
+"""同步相关路由（批量同步操作）"""
+
+from fastapi import APIRouter, Depends
+from sqlmodel import Session
+
+from app.core.security import require_api_key
+from app.database import get_session
+from app.services import sync_service
+
+router = APIRouter(prefix="/api/sync", tags=["sync"])
+
+
+@router.post(
+    "/ai-balances",
+    summary="同步所有 AI 账号余额",
+    dependencies=[Depends(require_api_key)],
+)
+def sync_ai_balances(session: Session = Depends(get_session)) -> dict:
+    return sync_service.sync_all_ai_balances(session)
diff --git a/app/services/sync_service.py b/app/services/sync_service.py
index f32c49f..2c2593b 100644
--- a/app/services/sync_service.py
+++ b/app/services/sync_service.py
@@ -295,3 +295,30 @@ def refresh_ai_balance(session: Session, asset_id: int) -> dict:
         "currency": ai.currency,
         "last_synced_at": ai.last_synced_at.isoformat(),
     }
+
+
+def sync_all_ai_balances(session: Session) -> dict:
+    """遍历所有 AI 账号资产，逐个刷新余额（单个失败不中断整体）"""
+    ai_assets = session.exec(
+        select(Asset).where(Asset.asset_type == AssetType.AI_AGENT)
+    ).all()
+    success = 0
+    failed = 0
+    errors = []
+    for asset in ai_assets:
+        try:
+            refresh_ai_balance(session, asset.id)
+            success += 1
+        except HTTPException as e:
+            failed += 1
+            errors.append(f"{asset.name}: {e.detail}")
+        except Exception as e:  # noqa: BLE001
+            failed += 1
+            errors.append(f"{asset.name}: {e}")
+    return {
+        "total": len(ai_assets),
+        "success": success,
+        "failed": failed,
+        "errors": errors,
+        "synced_at": datetime.utcnow().isoformat(),
+    }
diff --git a/deploy/vps-sync-ai.service b/deploy/vps-sync-ai.service
new file mode 100644
index 0000000..3210980
--- /dev/null
+++ b/deploy/vps-sync-ai.service
@@ -0,0 +1,13 @@
+# AI 账号余额同步服务（oneshot，由 timer 触发）
+# 部署位置：/etc/systemd/system/vps-sync-ai.service
+
+[Unit]
+Description=Sync all AI account balances
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+WorkingDirectory=/opt/vps-manager
+EnvironmentFile=-/opt/vps-manager/.env
+ExecStart=/opt/vps-manager/.venv/bin/python /opt/vps-manager/scripts/sync_ai_balances.py
diff --git a/deploy/vps-sync-ai.timer b/deploy/vps-sync-ai.timer
new file mode 100644
index 0000000..ad60083
--- /dev/null
+++ b/deploy/vps-sync-ai.timer
@@ -0,0 +1,13 @@
+# AI 账号余额每日同步定时器
+# 部署位置：/etc/systemd/system/vps-sync-ai.timer
+
+[Unit]
+Description=Daily sync of AI account balances
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+Unit=vps-sync-ai.service
+
+[Install]
+WantedBy=timers.target
diff --git a/scripts/sync_ai_balances.py b/scripts/sync_ai_balances.py
new file mode 100644
index 0000000..7fdb8b0
--- /dev/null
+++ b/scripts/sync_ai_balances.py
@@ -0,0 +1,32 @@
+"""定时同步所有 AI 账号余额（供 systemd timer 调用）
+
+用法：python scripts/sync_ai_balances.py
+依赖 .env 中的 MASTER_KEY（解密各账号 api_key）。
+"""
+
+import sys
+from pathlib import Path
+
+# 确保能导入 app 包（脚本位于 scripts/ 子目录）
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
+
+from sqlmodel import Session
+
+from app.database import assets_engine, init_db
+from app.services import sync_service
+
+
+def main() -> int:
+    init_db()
+    with Session(assets_engine) as session:
+        result = sync_service.sync_all_ai_balances(session)
+    print(
+        f"[AI余额同步] 总计 {result['total']} | 成功 {result['success']} | 失败 {result['failed']}"
+    )
+    for err in result["errors"]:
+        print(f"  - {err}")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/static/js/app.js b/static/js/app.js
index 9f31666..70e4820 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -226,6 +226,7 @@ const AssetsView = {
         <option value="">全部状态</option>
         <option v-for="(l,k) in Fmt.STATUS_LABELS" :key="k" :value="k">{{ l }}</option>
       </select>
+      <button @click="syncAllAI" class="text-sm px-3 py-1.5 rounded-lg border border-violet-300 dark:border-violet-700 text-violet-600 dark:text-violet-400 hover:bg-violet-50 dark:hover:bg-violet-900/20">同步AI余额</button>
       <span class="ml-auto text-xs text-slate-400">共 {{ store.assets.length }} 条</span>
     </div>
 
@@ -297,7 +298,15 @@ const AssetsView = {
         await loadAssets();
       } catch (e) { alert('刷新失败：' + e.message); }
     }
-    return { store, Fmt, reload: loadAssets, edit: openAssetEdit, del: deleteAsset, viewServer, refreshBalance };
+    async function syncAllAI() {
+      if (!confirm('同步所有 AI 账号的余额？')) return;
+      try {
+        const r = await Api.post('/sync/ai-balances', {});
+        alert('同步完成：成功 ' + r.success + '，失败 ' + r.failed + (r.errors && r.errors.length ? '\n' + r.errors.join('\n') : ''));
+        await loadAssets();
+      } catch (e) { alert('同步失败：' + e.message); }
+    }
+    return { store, Fmt, reload: loadAssets, edit: openAssetEdit, del: deleteAsset, viewServer, refreshBalance, syncAllAI };
   },
 };