diff --git a/NEWS.md b/NEWS.md
index cc067443..b3bb9249 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -19,6 +19,7 @@ Red Panda C++ Version 0.14.3
   - enhancement: when add files to project, auto add it to git (if the project has a git repository)
   - enhancement: when save a file, and it's under files view's current folder,  auto add it to git (if it has a git repository)
   - enhancement: new file icons for high contrast icon set
+  - fix: left and bottom panel size not correct when DPI changed
   
 
 Red Panda C++ Version 0.14.2
diff --git a/RedPandaIDE/main.cpp b/RedPandaIDE/main.cpp
index 7e6e1803..c2b84d3d 100644
--- a/RedPandaIDE/main.cpp
+++ b/RedPandaIDE/main.cpp
@@ -61,10 +61,15 @@ bool WindowLogoutEventFilter::nativeEventFilter(const QByteArray & /*eventType*/
             return true;
         }
         break;
-    case WM_DPICHANGED:
+    case WM_DPICHANGED:{
+        int oldDPI = screenDPI();
+        QEvent * dpiEvent = new QEvent(DPI_CHANGED_EVENT);
+        qApp->postEvent(pMainWindow,dpiEvent);
         setScreenDPI(HIWORD(pMsg->wParam));
-        pMainWindow->updateDPI();
+        int newDPI = screenDPI();
+        pMainWindow->updateDPI(oldDPI,newDPI);
         break;
+        }
     }
     return false;
 }
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 5e706303..31f3f5aa 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -742,9 +742,13 @@ void MainWindow::setActiveBreakpoint(QString FileName, int Line, bool setFocus)
     }
 }
 
-void MainWindow::updateDPI()
+void MainWindow::updateDPI(int oldDPI, int newDPI)
 {
     applySettings();
+    if (oldDPI<1)
+        oldDPI = 1;
+    mBottomPanelHeight = mBottomPanelHeight * newDPI / oldDPI ;
+    mLeftPanelWidth = mLeftPanelWidth * newDPI / oldDPI ;
 }
 
 void MainWindow::onFileSaved(const QString &path, bool inProject)
@@ -1837,6 +1841,8 @@ void MainWindow::openCloseBottomPanel(bool open)
         QList<int> sizes = ui->splitterMessages->sizes();
         int tabHeight = ui->tabMessages->tabBar()->height();
         ui->tabMessages->setMinimumHeight(tabHeight+5);
+        if ( mBottomPanelHeight < ui->tabMessages->tabBar()->height() + 5)
+            mBottomPanelHeight = ui->tabMessages->tabBar()->height() + 5;
         int totalSize = sizes[0] + sizes[1];
         sizes[1] = mBottomPanelHeight;
         sizes[0] = std::max(1,totalSize - sizes[1]);
@@ -1853,7 +1859,7 @@ void MainWindow::openCloseBottomPanel(bool open)
     }
     mBottomPanelOpenned = open;
     QSplitterHandle* handle = ui->splitterMessages->handle(1);
-    handle->setEnabled(open);
+    handle->setEnabled(mBottomPanelOpenned);
 }
 
 void MainWindow::openCloseLeftPanel(bool open)
@@ -1865,10 +1871,12 @@ void MainWindow::openCloseLeftPanel(bool open)
         mOpenClosingLeftPanel = false;
     });
     // Switch between open and close
-    if (open) {
+    if (open ) {
         QList<int> sizes = ui->splitterInfos->sizes();
         int tabWidth = ui->tabInfos->tabBar()->width();
         ui->tabInfos->setMinimumWidth(tabWidth+5);
+        if (mLeftPanelWidth < ui->tabInfos->tabBar()->width() + 5)
+            mLeftPanelWidth = ui->tabInfos->tabBar()->width() + 5;
         int totalSize = sizes[0] + sizes[1];
         sizes[0] = mLeftPanelWidth;
         sizes[1] = std::max(1,totalSize - sizes[0]);
@@ -1885,7 +1893,7 @@ void MainWindow::openCloseLeftPanel(bool open)
     }
     mLeftPanelOpenned = open;
     QSplitterHandle* handle = ui->splitterInfos->handle(1);
-    handle->setEnabled(open);
+    handle->setEnabled(mLeftPanelOpenned);
 }
 
 void MainWindow::prepareDebugger()
@@ -4080,6 +4088,21 @@ void MainWindow::hideEvent(QHideEvent *)
     settings.setLeftPanelWidth(mLeftPanelWidth);
 }
 
+bool MainWindow::event(QEvent *event)
+{
+    if (event->type()==DPI_CHANGED_EVENT) {
+        int saveHeight = mBottomPanelHeight ;
+        int saveWidth = mLeftPanelWidth;
+        openCloseBottomPanel(mBottomPanelOpenned);
+        openCloseLeftPanel(mLeftPanelOpenned);
+        mBottomPanelHeight = saveHeight;
+        mLeftPanelWidth = saveWidth;
+        event->accept();
+        return true;
+    }
+    return QMainWindow::event(event);
+}
+
 //void MainWindow::dragEnterEvent(QDragEnterEvent *event)
 //{
 //    if (event->mimeData()->hasUrls()){
diff --git a/RedPandaIDE/mainwindow.h b/RedPandaIDE/mainwindow.h
index 8bc75c4c..84c9b7fd 100644
--- a/RedPandaIDE/mainwindow.h
+++ b/RedPandaIDE/mainwindow.h
@@ -68,6 +68,8 @@ class SearchDialog;
 class Project;
 class ColorSchemeItem;
 
+#define DPI_CHANGED_EVENT ((QEvent::Type)(QEvent::User+1))
+
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
@@ -217,7 +219,7 @@ public slots:
     void onTodoParsing(const QString& filename, int lineNo, int ch, const QString& line);
     void onTodoParseFinished();
     void setActiveBreakpoint(QString FileName, int Line, bool setFocus);
-    void updateDPI();
+    void updateDPI(int oldDPI, int newDPI);
     void onFileSaved(const QString& path, bool inProject);
 
 private:
@@ -727,6 +729,10 @@ protected:
     void showEvent(QShowEvent* event) override;
     void hideEvent(QHideEvent *event) override;
 
+
+    // QObject interface
+public:
+    bool event(QEvent *event) override;
 };
 
 extern MainWindow* pMainWindow;