diff --git a/DIDKit/App/MenuAction/OpenDirAction.cpp b/DIDKit/App/MenuAction/OpenDirAction.cpp
index e37d1db..7f7f4a7 100644
--- a/DIDKit/App/MenuAction/OpenDirAction.cpp
+++ b/DIDKit/App/MenuAction/OpenDirAction.cpp
@@ -2,6 +2,7 @@
 
 #include <QFileDialog>
 #include <QMenu>
+#include <QSettings>
 
 #include "IO/DICOM/DicomLoader.h"
 #include "DICOMPropertiesStore.h"
@@ -19,10 +20,21 @@ OpenDirAction::~OpenDirAction()
 
 void OpenDirAction::executeAction()
 {
+    QString cachePath = QDir::currentPath()+"/.cache";
+    if (!QFile::exists(cachePath))
+    {
+        QFile cache(cachePath);
+        cache.open(QFile::NewOnly);
+        cache.close();
+    }
+    QSettings setting(cachePath,QSettings::IniFormat);
+    
     QString path =  QFileDialog::getExistingDirectory(menu(),
-            tr("Open Directory"), QDir::currentPath(),
+            tr("Open Directory"), setting.contains("LastDir")?setting.value("LastDir").toString():QDir::currentPath(),
             QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+    
     DicomLoader::InitCodecs();
+    setting.setValue("LastDir",path);
     std::string dir = path.toStdString();
     std::vector<ExtendMedicalImageProperties*> vector;
     int count = 0;
diff --git a/src/src/UI/Window/QDicomViewer.cpp b/src/src/UI/Window/QDicomViewer.cpp
index 2ecd609..b190e10 100644
--- a/src/src/UI/Window/QDicomViewer.cpp
+++ b/src/src/UI/Window/QDicomViewer.cpp
@@ -205,20 +205,37 @@ void QDicomViewer::initViewOperation() {
 void QDicomViewer::initGeneralTool() {
     // open dir
     connect(ui->toolBar,&DefaultToolBar::openFolder, [&] {
+    QString cachePath = QDir::currentPath()+"/.cache";
+    if (!QFile::exists(cachePath))
+    {
+        QFile cache(cachePath);
+        cache.open(QFile::NewOnly);
+        cache.close();
+    }
+    QSettings setting(cachePath,QSettings::IniFormat);
         QString p = QFileDialog::getExistingDirectory(this, tr("Open dicom directory"),
-                                                      m_qs.value("DIR_PATH_ID").toString());
+                                                      setting.contains("LastDir")?setting.value("LastDir").toString():QDir::currentPath());
         if (!p.isEmpty()) {
-            m_qs.setValue("DIR_PATH_ID", p);
             openDICOM(p.toLocal8Bit().toStdString(), DIR_OPEN_MODE);
+            setting.setValue("LastDir",p);  
         }
     });
     // openfile
     connect(ui->toolBar,&DefaultToolBar::openFile,  [&] {
-        QString fn = QFileDialog::getOpenFileName(this, tr("Open dicom files"), m_qs.value("FILE_PATH_ID").toString());
-        if (!fn.isEmpty()) {
-            m_qs.setValue("FILE_PATH_ID", fn);
-            openDICOM(fn.toLocal8Bit().toStdString(), FILE_OPEN_MODE);
-        }
+            QString cachePath = QDir::currentPath()+"/.cache";
+            if (!QFile::exists(cachePath))
+            {
+                QFile cache(cachePath);
+                cache.open(QFile::NewOnly);
+                cache.close();
+            }
+            QSettings setting(cachePath,QSettings::IniFormat);  
+            QString fn = QFileDialog::getOpenFileName(this, tr("Open dicom files"), setting.contains("LastDir")?setting.value("LastDir").toString():QDir::currentPath());
+            if (!fn.isEmpty()) {
+                QFileInfo info(fn);
+                openDICOM(fn.toLocal8Bit().toStdString(), FILE_OPEN_MODE);
+                setting.setValue("LastDir", info.absolutePath());  
+            }
     });
     // import
     connect(ui->toolBar, &DefaultToolBar::import, this, [&] {