diff --git a/miniprogram/pages/home/home.ts b/miniprogram/pages/home/home.ts
index b5b5c00..de55de1 100644
--- a/miniprogram/pages/home/home.ts
+++ b/miniprogram/pages/home/home.ts
@@ -57,6 +57,8 @@ const splitWeight = (weight: number): { int: number; decimal: string } => {
 }
 
 Page({
+    _otaChecked: false as boolean,
+
     data: {
         hasData: false,
         device: {
@@ -72,6 +74,7 @@ Page({
         })
         lefuService.onDeviceConnect(() => {
             this.setData({ 'device.connected': true })
+            this._checkOta()
         })
         lefuService.onDisconnected(() => {
             this.setData({ 'device.connected': false })
@@ -137,6 +140,31 @@ Page({
             })
     },
 
+    /** OTA 固件检测，连接成功后自动调用，有新版本直接升级，整个页面生命周期只触发一次 */
+    _checkOta() {
+        if (this._otaChecked) return
+        this._otaChecked = true
+        lefuService.checkAndUpgrade()
+            .then(needUpdate => {
+                if (!needUpdate) return
+                wx.showLoading({ title: '固件升级中...', mask: true })
+                lefuService.checkAndUpgrade()
+                    .then(() => {
+                        wx.hideLoading()
+                        wx.showModal({
+                            title: '升级完成',
+                            content: '固件升级成功，请重新开启设备',
+                            showCancel: false,
+                        })
+                    })
+                    .catch((err: Error) => {
+                        wx.hideLoading()
+                        wx.showToast({ title: err.message || '升级失败，请重试', icon: 'none' })
+                    })
+            })
+            .catch(() => {})
+    },
+
     /** 跳转历史数据页 */
     onTapHistory() {
         wx.switchTab({ url: '/pages/data/data' })