diff --git a/entry/src/main/ets/tcp2byte/index.ts b/entry/src/main/ets/tcp2byte/index.ts
index bbc4dcc4..aefff462 100644
--- a/entry/src/main/ets/tcp2byte/index.ts
+++ b/entry/src/main/ets/tcp2byte/index.ts
@@ -114,8 +114,8 @@ function handReceiveMessage(client: socket.TCPSocket, sendData, rData: ArrayBuff
       const start = index * 2;
       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});
+      console.info(TAG, '补包内容' + JSON.stringify(new Uint8Array(sendData[packageIndex-1])))
+      client.send({data:new Uint8Array(sendData[packageIndex-1]).buffer});
     })
   } else {
     const decoder = util.TextDecoder.create('utf-8');