diff --git a/plugins/dde-network-core/dock-tray-network-plugin/dockcontentwidget.h b/plugins/dde-network-core/dock-tray-network-plugin/dockcontentwidget.h
index 3071bcc60..bdc5d13c5 100644
--- a/plugins/dde-network-core/dock-tray-network-plugin/dockcontentwidget.h
+++ b/plugins/dde-network-core/dock-tray-network-plugin/dockcontentwidget.h
@@ -74,7 +74,7 @@ class DockContentWidget : public QWidget
         m_netView->setMaxHeight(h);
         if (m_netView->height() > h)
             m_netView->setFixedHeight(h);
-        resize(m_netView->width(), qMax(m_minHeight, m_netView->height() + 20 + m_mainLayout->contentsMargins().top() + (m_netCheckBtn->isVisible() ? (m_netSetBtn->height() + m_netCheckBtn->height() + 10) : m_netSetBtn->height())));
+        setFixedSize(m_netView->width(), qMax(m_minHeight, m_netView->height() + 20 + m_mainLayout->contentsMargins().top() + (m_netCheckBtn->isVisible() ? (m_netSetBtn->height() + m_netCheckBtn->height() + 10) : m_netSetBtn->height())));
     }
     void setNetCheckBtnVisible(bool visible) {
         m_netCheckBtn->setVisible(visible);