diff --git a/sec-beidou/src/main/resources/templates/page/cmd_line.html b/sec-beidou/src/main/resources/templates/page/cmd_line.html
index 059f33f6..8c79231e 100644
--- a/sec-beidou/src/main/resources/templates/page/cmd_line.html
+++ b/sec-beidou/src/main/resources/templates/page/cmd_line.html
@@ -154,7 +154,7 @@
 		websocket.onmessage = function (event) {
 			console.log(event.data);
 			var rxWin = layui.$('#rx_win');
-			rxWin.append(event.data + "\r\n");
+			rxWin.val(rxWin.val()+event.data + "\r\n");
 			var obj = document.getElementById("rx_win");
 			rxWin.scrollTop = rxWin.scrollHeight;
 		}