diff --git a/app.js b/app.js
index bf5a125..281e7db 100644
--- a/app.js
+++ b/app.js
@@ -76,12 +76,31 @@ App({
 	
 	initPpScale() {
 		this.globalData.ppScale.plugin = requirePlugin('ppScale-plugin');
-		const plugin = this.globalData.ppScale.plugin;
 		
-		plugin.bus.subscribe("connectState", (res) => {
+		this.globalData.ppScale.plugin.bus.subscribe("connectState", (res) => {
 			console.log("app.js ===> connectState", res);
 
+			// 连接失败则重新连接
+			if (res == this.globalData.ppScale.plugin.BLUE_STATE.CONNECTFAILED) {
+				this.reconnectDevice()
+			}
 			wx.hideLoading();
 		});
+
+		this.globalData.ppScale.plugin.bus.subscribe("deviceWillDisconnect", (res) => {
+			console.log("app.js ===> deviceWillDisconnect", res);
+            
+            this.reconnectDevice();
+		})
 	},
+
+	reconnectDevice() {
+		this.globalData.ppScale.plugin.Blue.disconnect((disres) => {
+			if (disres.errCode == 0) {
+				this.globalData.ppScale.plugin.Blue.startBluetoothDevicesDiscovery();
+			} else {
+				this.reconnectDevice();
+			}
+		})
+	}
 })
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