diff --git a/src/main_control_service.cpp b/src/main_control_service.cpp
index b2e0c35..685764a 100644
--- a/src/main_control_service.cpp
+++ b/src/main_control_service.cpp
@@ -62,11 +62,28 @@ void MainControlService::initialize() {
   m_iflytopwsService->onMessage.connect([this](weak_ptr<WebSocket> webSocket, json& cmd, json& receipt) { processFrontEndMessage(webSocket, cmd, receipt); });
   m_iflytopwsService->onUdpCmdMessage.connect([this](struct sockaddr_in* from, char* data, size_t len) {
     //
-    string retmsg;
-    bool   suc       = m_zcanhost->execcmd(string(data, len), retmsg);
-    string retmsgstr = fmt::format("{},{}", suc ? "suc" : "fail", retmsg);
 
-    m_iflytopwsService->sendToUDP(from, retmsgstr.c_str(), retmsgstr.size());
+    for (size_t i = 0; i < len; i++) {
+      if (data[i] == '\r' || data[i] == '\n') {
+        data[i] = '\0';
+      }
+    }
+    bool execsuc = false;
+    for (size_t i = 0; i < len; i++) {
+      if (data[i] != '\0') {
+        int inext = strlen(&data[i]) + i;
+        {
+          string retmsg;
+          execsuc          = m_zcanhost->execcmd(string(&data[i]), retmsg);
+          string retmsgstr = fmt::format("{},{}", execsuc ? "suc" : "fail", retmsg);
+          m_iflytopwsService->sendToUDP(from, retmsgstr.c_str(), retmsgstr.size());
+        }
+        i = inext;
+        if (!execsuc) {
+          break;
+        }
+      }
+    }
   });
   m_iflytopwsService->startListen();