diff --git a/plugins/dde-dock/brightness/CMakeLists.txt b/plugins/dde-dock/brightness/CMakeLists.txt
index 050c5690c..04dae682b 100644
--- a/plugins/dde-dock/brightness/CMakeLists.txt
+++ b/plugins/dde-dock/brightness/CMakeLists.txt
@@ -14,8 +14,6 @@ file(GLOB_RECURSE SRCS
     "../widgets/*.cpp"
     "../common/*.h"
     "../common/*.cpp"
-    "../util/roundscrollarea.h"
-    "../util/roundscrollarea.cpp"
     "../dbus/types/*.h"
     "../dbus/types/*.cpp"
 )
diff --git a/plugins/dde-dock/brightness/brightnessapplet.cpp b/plugins/dde-dock/brightness/brightnessapplet.cpp
index 6c5bcb1ee..149347f7c 100644
--- a/plugins/dde-dock/brightness/brightnessapplet.cpp
+++ b/plugins/dde-dock/brightness/brightnessapplet.cpp
@@ -22,7 +22,7 @@ DWIDGET_USE_NAMESPACE
 BrightnessApplet::BrightnessApplet(QWidget* parent)
     : QWidget(parent)
     , m_titleWidget(new QWidget(this))
-    , m_scrollArea(new RoundScrollArea(this))
+    , m_scrollArea(new QScrollArea(this))
     , m_monitorsLayout(nullptr)
     , m_jumpSettingButton(new JumpSettingButton(this))
     , m_minHeight(-1)
@@ -58,7 +58,6 @@ void BrightnessApplet::initUI()
     widget->setAttribute(Qt::WA_TranslucentBackground);
     widget->setLayout(m_monitorsLayout);
     m_scrollArea->setWidget(widget);
-    m_scrollArea->setRadius(0);
     m_scrollArea->setWidgetResizable(true);
     m_scrollArea->setFrameStyle(QFrame::NoFrame);
     m_scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
diff --git a/plugins/dde-dock/brightness/brightnessapplet.h b/plugins/dde-dock/brightness/brightnessapplet.h
index dbdd50277..b6d1ac434 100644
--- a/plugins/dde-dock/brightness/brightnessapplet.h
+++ b/plugins/dde-dock/brightness/brightnessapplet.h
@@ -8,7 +8,6 @@
 #include "jumpsettingbutton.h"
 #include "monitor.h"
 #include "slidercontainer.h"
-#include "roundscrollarea.h"
 
 #include <QWidget>
 #include <QScrollArea>
@@ -39,7 +38,7 @@ class BrightnessApplet : public QWidget
 
 private:
     QWidget *m_titleWidget;
-    RoundScrollArea *m_scrollArea;
+    QScrollArea *m_scrollArea;
     QVBoxLayout *m_monitorsLayout;
     JumpSettingButton *m_jumpSettingButton;
     int m_minHeight;
diff --git a/plugins/dde-dock/util/roundscrollarea.cpp b/plugins/dde-dock/util/roundscrollarea.cpp
deleted file mode 100644
index 9f42cb7b4..000000000
--- a/plugins/dde-dock/util/roundscrollarea.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-// SPDX-FileCopyrightText: 2018 - 2023 UnionTech Software Technology Co., Ltd.
-//
-// SPDX-License-Identifier: LGPL-3.0-or-later
-
-#include "roundscrollarea.h"
-
-#include <QPainter>
-#include <QPainterPath>
-
-#include <DPalette>
-#include <DPaletteHelper>
-
-DWIDGET_USE_NAMESPACE
-
-RoundScrollArea::RoundScrollArea(QWidget *parent)
-    : QScrollArea(parent)
-    , m_radius(18)
-{
-    DPalette pa = DPaletteHelper::instance()->palette(this);
-    pa.setBrush(DPalette::Window, Qt::transparent);
-    DPaletteHelper::instance()->setPalette(this, pa);
-}
-
-void RoundScrollArea::setRadius(int radius)
-{
-    m_radius = radius;
-    update();
-}
-
-void RoundScrollArea::paintEvent(QPaintEvent *e)
-{
-    QPainter painter(viewport());
-    painter.setRenderHint(QPainter::Antialiasing);
-
-    QPainterPath path;
-    path.addRoundedRect(viewport()->rect(), m_radius, m_radius);
-    painter.setClipPath(path);
-    painter.fillPath(path, palette().window());
-}
diff --git a/plugins/dde-dock/util/roundscrollarea.h b/plugins/dde-dock/util/roundscrollarea.h
deleted file mode 100644
index a7744e318..000000000
--- a/plugins/dde-dock/util/roundscrollarea.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-FileCopyrightText: 2018 - 2023 UnionTech Software Technology Co., Ltd.
-//
-// SPDX-License-Identifier: LGPL-3.0-or-later
-
-#ifndef ROUNDSCROLLAREA_H
-#define ROUNDSCROLLAREA_H
-
-#include <QScrollArea>
-
-class RoundScrollArea : public QScrollArea 
-{
-    Q_OBJECT
-public:
-    explicit RoundScrollArea(QWidget* parent = nullptr);
-
-    void setRadius(int radius);
-
-protected:
-    void paintEvent(QPaintEvent* event) override;
-
-private:
-    int m_radius;
-};
-
-#endif // ROUNDSCROLLAREA_H