diff --git a/entry/src/main/ets/tcp2byte/index.ts b/entry/src/main/ets/tcp2byte/index.ts
index 3fdbc7bf..c04febd9 100644
--- a/entry/src/main/ets/tcp2byte/index.ts
+++ b/entry/src/main/ets/tcp2byte/index.ts
@@ -99,15 +99,15 @@ function handReceiveMessage(client: socket.TCPSocket, sendData, rData:ArrayBuffe
   //开始补包
   if(messageType === 0xF0){
     //获取消息体长度
-    const messageLength = receiveData[12]
+    const messageLength = receiveData[13]
     //分包总数
-    const packages = bytesToDecimal(receiveData.slice(13,13 + messageLength*2));
-    const forArr = new Array(packages).fill(1)
+    const packages = receiveData.slice(14, 14 + messageLength * 2);
+    const forArr = new Array(messageLength).fill(1)
 
     forArr.forEach((item,index)=>{
       const start = index * 2;
-      const end = start + 2;
-      const packageIndex =  bytesToDecimal([start,end]);
+      const end = start + 1;
+      const packageIndex =  bytesToDecimal([packages[start],packages[end]]);
       console.info(TAG, '补包内容' + JSON.stringify(new Uint8Array(sendData[packageIndex])))
       client.send({data:new Uint8Array(sendData[packageIndex]).buffer});
     })