diff --git a/src/RasterSDG20/Raster.cpp b/src/RasterSDG20/Raster.cpp
index c4c7fbb..4e11007 100644
--- a/src/RasterSDG20/Raster.cpp
+++ b/src/RasterSDG20/Raster.cpp
@@ -16,6 +16,7 @@ CRaster::CRaster(QString strPath)
 	m_pThickness->setRasterST(m_pRasSt);
 }
 
+
 CRaster::~CRaster()
 {
 	delete m_pRasSt;
@@ -23,6 +24,36 @@ CRaster::~CRaster()
 	delete m_pThickness;
 }
 
+void CRaster::saveDefaultParam()
+{
+	QJsonObject jsRaster = QJsonObject();
+	QJsonObject Rasterobj_dev;
+	Rasterobj_dev.insert("beilv", QJsonValue(m_pRasSt->m_beilv));
+	Rasterobj_dev.insert("basehight", QJsonValue(m_pRasSt->m_baseHight));
+	Rasterobj_dev.insert("mid_value", QJsonValue(m_pRasSt->mid_value));//ÖÐÖµ
+	Rasterobj_dev.insert("maxsize", QJsonValue(m_pRasSt->m_maxsize));
+	Rasterobj_dev.insert("lowNum", QJsonValue(m_pRasSt->m_lowNum));
+	Rasterobj_dev.insert("beilv_bool", QJsonValue(m_pRasSt->m_bool_beilv));
+	Rasterobj_dev.insert("basehight_bool", QJsonValue(m_pRasSt->m_bool_baseHight));
+	Rasterobj_dev.insert("maxsize_bool", QJsonValue(m_pRasSt->m_bool_maxsize));
+	Rasterobj_dev.insert("lowNum_bool", QJsonValue(m_pRasSt->m_bool_lowNum));
+	Rasterobj_dev.insert("mid_value_bool", QJsonValue(m_pRasSt->m_bool_mid_value));
+	jsRaster.insert("Raster", Rasterobj_dev);
+
+	QJsonObject Rasterobj;
+	Rasterobj.insert("comName", QJsonValue(m_pRasCom->m_ComName));
+	Rasterobj.insert("baute", QJsonValue(m_pRasCom->m_Baute));
+	Rasterobj.insert("useRaster", QJsonValue(m_pRasCom->m_UseRaster));
+	jsRaster.insert("COM", Rasterobj);
+
+
+	QFile saveFile(m_strPath);
+	saveFile.open(QIODevice::WriteOnly);
+	QJsonDocument saveDoc(jsRaster);
+	saveFile.write(saveDoc.toJson());
+	saveFile.close();
+}
+
 RasterST * CRaster::getRasterSt() const
 {
 	return m_pRasSt;
@@ -35,6 +66,7 @@ bool CRaster::readRasterJson()
 
 	if (!loadFile.open(QIODevice::ReadOnly)) {
 		qWarning("Couldn't open save file.");
+		saveDefaultParam();
 		return false;
 	}
 	QByteArray readData = loadFile.readAll();
@@ -70,7 +102,19 @@ bool CRaster::readRasterJson()
 
 bool CRaster::saveRasterJson(emTySaveJsonType emType)
 {
-	QJsonObject mObj;
+	QFile loadFile(m_strPath);
+
+	if (!loadFile.open(QIODevice::ReadOnly)) {
+
+		qWarning("Couldn't open save file.");
+		return false;
+	}
+	QByteArray readData = loadFile.readAll();
+	QJsonDocument readDoc = QJsonDocument::fromJson(readData);
+	QJsonObject jsRaster = readDoc.object();
+	if (jsRaster.isEmpty())
+		jsRaster = QJsonObject();
+
 	switch (emType)
 	{
 	case EMTYPE_RASTER:{
@@ -85,7 +129,7 @@ bool CRaster::saveRasterJson(emTySaveJsonType emType)
 		Rasterobj.insert("maxsize_bool", QJsonValue(m_pRasSt->m_bool_maxsize));
 		Rasterobj.insert("lowNum_bool", QJsonValue(m_pRasSt->m_bool_lowNum));
 		Rasterobj.insert("mid_value_bool", QJsonValue(m_pRasSt->m_bool_mid_value));
-		mObj.insert("Raster", Rasterobj);
+		jsRaster.insert("Raster", Rasterobj);
 	}
 		break;
 	case EMTYPE_COM:{
@@ -93,7 +137,7 @@ bool CRaster::saveRasterJson(emTySaveJsonType emType)
 		Rasterobj.insert("comName", QJsonValue(m_pRasCom->m_ComName));
 		Rasterobj.insert("baute", QJsonValue(m_pRasCom->m_Baute));
 		Rasterobj.insert("useRaster", QJsonValue(m_pRasCom->m_UseRaster));
-		mObj.insert("COM", Rasterobj);
+		jsRaster.insert("COM", Rasterobj);
 	}
 		break;
 	default:
@@ -101,7 +145,7 @@ bool CRaster::saveRasterJson(emTySaveJsonType emType)
 	}
 	QFile saveFile(m_strPath);
 	saveFile.open(QIODevice::WriteOnly);
-	QJsonDocument saveDoc(mObj);
+	QJsonDocument saveDoc(jsRaster);
 	saveFile.write(saveDoc.toJson());
 	saveFile.close();
 	return true;
diff --git a/src/RasterSDG20/Raster.h b/src/RasterSDG20/Raster.h
index 5a36276..37b0909 100644
--- a/src/RasterSDG20/Raster.h
+++ b/src/RasterSDG20/Raster.h
@@ -50,6 +50,7 @@ public:
 	CRaster(QString strPath);
 	~CRaster();
 
+	void saveDefaultParam();
 public:
 	double getThicknessValue() const;
 	void addThicknessValue(double dValue);