diff --git a/app/HGProductionTool/dialog_inputserialnum.cpp b/app/HGProductionTool/dialog_inputserialnum.cpp
index dbeb20a..1548d2e 100644
--- a/app/HGProductionTool/dialog_inputserialnum.cpp
+++ b/app/HGProductionTool/dialog_inputserialnum.cpp
@@ -355,7 +355,7 @@ void Dialog_InputSerialNum::updateCurDeviceCfg()
     QString content;
     content.append(tr("Current Configration of device:") + "\n\n");
 
-    if (!devideModel.isEmpty())
+    if (!devideModel.isEmpty() && !jsonGlobal.device_model.isEmpty())
         content.append(tr("Device model: %1").arg(devideModel) + "\n");
 
     if (!fwVersion.isEmpty())