diff --git a/src/confform.cpp b/src/confform.cpp
index f472f228..9278089e 100644
--- a/src/confform.cpp
+++ b/src/confform.cpp
@@ -131,6 +131,7 @@ ConfForm::ConfForm(QWidget *parent) :
     setModal(false);
 
     KWindowEffects::enableBlurBehind(this->winId(), true, QRegion(path.toFillPolygon().toPolygon()));
+    setEnableOfBtn();
 }
 
 ConfForm::~ConfForm()
@@ -553,7 +554,7 @@ void ConfForm::on_leDns_textEdited(const QString &arg1)
 //编辑网络备用DNS
 void ConfForm::on_leDns2_textEdited(const QString &arg1)
 {
-    // this->setEnableOfBtn();
+     this->setEnableOfBtn();
 }
 
 //设置界面按钮是否可点击
@@ -584,6 +585,14 @@ void ConfForm::setEnableOfBtn()
             this->setBtnEnableFalse();
             return;
         }
+        if(ui->leDns2->text().isEmpty()){
+
+        }else{
+            if(!this->getTextEditState(ui->leDns2->text())){
+                this->setBtnEnableFalse();
+                return ;
+            }
+        }
     }