diff --git a/backend/src/jobs/agent-task.ts b/backend/src/jobs/agent-task.ts
index 2f3b3b8..cd64db1 100644
--- a/backend/src/jobs/agent-task.ts
+++ b/backend/src/jobs/agent-task.ts
@@ -7,12 +7,11 @@ import {
 } from "../services";
 import { shouldSendNotification, sendNotification } from "../services";
 import { Hono } from "hono";
-import { Bindings } from "../models/db";
 import { db } from "../config";
-import { eq } from "drizzle-orm";
-import { notificationSettings } from "../db/schema";
+import { eq,lt } from "drizzle-orm";
+import { notificationSettings,agentMetrics24h } from "../db/schema";
 
-const agentTask = new Hono<{ Bindings: Bindings }>();
+const agentTask = new Hono<{}>();
 
 interface AgentResult {
   id: number;
@@ -299,9 +298,7 @@ export default {
 
     if (hour % 6 === 0 && minute === 5) {
       console.log("定时任务: 正在清理 metrics 24h 表数据...");
-      await env.DB.prepare("DELETE FROM agent_metrics_24h WHERE timestamp < ?")
-        .bind(yesterday)
-        .run();
+      await db.delete(agentMetrics24h).where(lt(agentMetrics24h.timestamp, yesterday));
     }
 
     return result;
diff --git a/backend/src/jobs/index.ts b/backend/src/jobs/index.ts
index 1c1cf39..6b2a95c 100644
--- a/backend/src/jobs/index.ts
+++ b/backend/src/jobs/index.ts
@@ -1,7 +1,10 @@
 // 导出所有定时任务
 import monitorTask from "./monitor-task";
 import agentTask from "./agent-task";
-import { Bindings } from "../models/db";
+import { db } from "../config";
+import * as schema from "../db/schema";
+import { lt } from "drizzle-orm";
+
 // 统一的定时任务处理函数
 export const runScheduledTasks = async (event: any, env: any, ctx: any) => {
   try {
@@ -18,7 +21,7 @@ export const runScheduledTasks = async (event: any, env: any, ctx: any) => {
     const minute = now.getMinutes();
     if (dayOfMonth === 1 && hour === 0 && minute === 30) {
       console.log("每月1号零点30分执行清理任务...");
-      await cleanupOldRecords(env.DB);
+      await cleanupOldRecords();
     }
   } catch (error) {
     console.error("定时任务执行出错:", error);
@@ -26,27 +29,21 @@ export const runScheduledTasks = async (event: any, env: any, ctx: any) => {
 };
 
 // 清理30天以前的历史记录
-export async function cleanupOldRecords(db: Bindings["DB"]) {
+export async function cleanupOldRecords() {
   console.log("开始清理30天以前的历史记录...");
 
   // 清理30天以前的 monitor_daily_stats
-  await db.prepare(
-      `
-      DELETE FROM monitor_daily_stats
-      WHERE date < datetime('now', '-30 days')
-    `
-    )
-    .run();
+  const now = new Date();
+  now.setDate(now.getDate() - 30);
+  const dateStr = now.toISOString().split("T")[0];
+  await db.delete(schema.monitorDailyStats).where(
+    lt(schema.monitorDailyStats.date, dateStr)
+  )
 
   // 清理通知历史记录
-  await db
-    .prepare(
-      `
-      DELETE FROM notification_history 
-      WHERE sent_at < datetime('now', '-30 days')
-    `
-    )
-    .run();
+  await db.delete(schema.notificationHistory).where(
+    lt(schema.notificationHistory.sent_at, dateStr)
+  )
 
   return {
     success: true,
diff --git a/backend/src/jobs/monitor-task.ts b/backend/src/jobs/monitor-task.ts
index 1cc6708..190b2cc 100644
--- a/backend/src/jobs/monitor-task.ts
+++ b/backend/src/jobs/monitor-task.ts
@@ -29,7 +29,7 @@ async function checkMonitors(c: any) {
         console.log(`开始检查监控: ${monitor.name} (ID: ${monitor.id})`);
         const checkResult = await checkMonitor(monitor);
         // 处理通知
-        console.log(`检查完成，状态: ${checkResult}`);
+        console.log(`检查完成，状态: ${checkResult.status}`);
         await handleMonitorNotification(c, monitor, checkResult);
         return checkResult;
       })
diff --git a/backend/src/services/MonitorService.ts b/backend/src/services/MonitorService.ts
index 67eddd0..a959b0e 100644
--- a/backend/src/services/MonitorService.ts
+++ b/backend/src/services/MonitorService.ts
@@ -88,7 +88,7 @@ export async function checkMonitor(monitor: models.Monitor) {
     const status = isExpectedStatus ? "up" : "down";
 
     // 记录状态历史
-    const res = await repositories.insertMonitorStatusHistory(
+    await repositories.insertMonitorStatusHistory(
       monitor.id,
       status,
       responseTime,
@@ -96,7 +96,7 @@ export async function checkMonitor(monitor: models.Monitor) {
       error
     );
 
-    console.log(`监控 ${monitor.name} (${monitor.url}) 检查完成. ${res}`);
+    console.log(`监控 ${monitor.name} (${monitor.url}) 检查完成.`);
 
     // 更新监控状态
     await repositories.updateMonitorStatus(monitor.id, status, responseTime);