diff --git a/BaseCommonLibrary/BaseTool/ImageOperatorBase.h b/BaseCommonLibrary/BaseTool/ImageOperatorBase.h
index 2f52328..633dd9e 100644
--- a/BaseCommonLibrary/BaseTool/ImageOperatorBase.h
+++ b/BaseCommonLibrary/BaseTool/ImageOperatorBase.h
@@ -328,7 +328,7 @@ ErrorCode  BASECONSTVARIABLEAPI	Complex2AmpRaster(QString inComplexPath, QString
 ErrorCode  BASECONSTVARIABLEAPI	ResampleDEM(QString indemPath, QString outdemPath, double gridx, double gridy);
 
 
-
+void BASECONSTVARIABLEAPI	CloseAllGDALRaster();
 
 
 
diff --git a/BaseCommonLibrary/ImageOperatorFuntion.cpp b/BaseCommonLibrary/ImageOperatorFuntion.cpp
index 6313329..2397a00 100644
--- a/BaseCommonLibrary/ImageOperatorFuntion.cpp
+++ b/BaseCommonLibrary/ImageOperatorFuntion.cpp
@@ -1665,6 +1665,12 @@ ErrorCode ResampleDEM(QString indemPath, QString outdemPath, double gridx, doubl
 	}
 }
 
+void BASECONSTVARIABLEAPI CloseAllGDALRaster()
+{
+	GDALDestroyDriverManager();
+	return ;
+}
+
 
 
 ErrorCode Complex2AmpRaster(QString inComplexPath, QString outRasterPath)
diff --git a/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.cpp b/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.cpp
index eb4f02a..d985f06 100644
--- a/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.cpp
+++ b/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.cpp
@@ -14,7 +14,7 @@
 #include "FileOperator.h"
 
 #include "RasterWidgetMessageShow.h"
-
+#include "ImageOperatorBase.h"
 
 #pragma execution_character_set("utf-8")
 
@@ -59,7 +59,7 @@ RasterMainWidget::RasterMainWidget(QWidget *parent)
 	//mUi->layerList->setCurrentItem(mLayerList.first());
 
    
-
+    connect(mUi->actioncloseAllRasterFile, SIGNAL(triggered()), this, SLOT(onactioncloseAllRasterFile_triggered()));
 
 }
 
@@ -341,6 +341,11 @@ void RasterMainWidget::on_addPlaneaction_triggered()
     mMapConvas->selectTool("addplane_tool");
 }
 
+void RasterMainWidget::onactioncloseAllRasterFile_triggered()
+{
+    CloseAllGDALRaster();
+}
+
 QTableWidget* RasterMainWidget::getTaskTable()
 {
     return this->mUi->taskTable;
diff --git a/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.h b/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.h
index a64eb49..f4f3316 100644
--- a/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.h
+++ b/RasterMainWidgetGUI/RasterMainWidget/RasterMainWidget.h
@@ -77,7 +77,7 @@ namespace LAMPMainWidget {
 	private slots:
 		void on_drawArea_triggered();
 		void on_addPlaneaction_triggered();
-
+		void onactioncloseAllRasterFile_triggered();
 	private:
 		Ui::RasterMainWidget* mUi;
 		MapCanvas* mMapConvas;