diff --git a/src/data/xlsxhandler.cpp b/src/data/xlsxhandler.cpp
index 518aa29..9d5546e 100644
--- a/src/data/xlsxhandler.cpp
+++ b/src/data/xlsxhandler.cpp
@@ -128,6 +128,7 @@ void XlsxHandler::readPhaseData(QXlsx::Worksheet *workSheet, int &startLineIndex
 void XlsxHandler::writeExperimentFile(const QString filePath)
 {
     logde<<"write file...";
+
 #if 0
     if(Global::_curveExperimentDataVtr.empty()){
         logde<<"_curveExperimentDataVtr empty...";
@@ -250,11 +251,13 @@ void XlsxHandler::writeExperimentFile(const QString filePath)
         row++;
 
         // phase data.
-        //        logde<<"Global::_curveExperimentDataVtr size:"
-        //            <<Global::_curveExperimentDataVtr.size();
-
-        const QVector<Global::ExperimentData>& edVtr =
+        QVector<Global::ExperimentData> edVtr =
                 Global::_curveExperimentDataVtr.at(i).dataVtr;
+
+        if(Global::_smoothnessFlag){
+            edVtr = Global::_curveExperimentDataVtr.at(i).smoothDataVtr;
+        }
+
         // phase data size.
         dataSizeRow = row;
         xlsx.write(row , 1, ConPhaseDataSize);
@@ -289,7 +292,7 @@ void XlsxHandler::writeExperimentFile(const QString filePath)
     
 }
 
-void XlsxHandler:: appendAnalysisOperation(const QString filePath)
+void XlsxHandler:: xlsxFileAppendAnalysisOperation(const QString filePath)
 {
     QXlsx::Document* xlsx = openXlsxFile(_currentFilePath);
     if(!xlsx){
@@ -594,15 +597,15 @@ void XlsxHandler::writeSmoothnessFile(const QString filePath)
     // Write phase data.
 
     logde<<"curve file vtr size:"<<Global::_curveFileDataVtr.size();
-   QVector<Global::PhaseTotalInfo>& phaseVtr =
-           Global::_curveFileDataVtr.first().phaseTotalVtr;
+    QVector<Global::PhaseTotalInfo>& phaseVtr =
+            Global::_curveFileDataVtr.first().phaseTotalVtr;
 
     int dataSizeRow = 0;
-//    logde<<"phase vtr size:"<<ei.phaseVtr.size();
+    //    logde<<"phase vtr size:"<<ei.phaseVtr.size();
 
     for(int i = 0; i < phaseVtr.size();i++){
         logde<<"phase index:"<<i;
-//        const Phase& phase = ei.phaseVtr.at(i);
+        //        const Phase& phase = ei.phaseVtr.at(i);
 
         Phase phase = phaseVtr.at(i).phase;
 
@@ -693,34 +696,6 @@ void XlsxHandler::writeSmoothnessFile(const QString filePath)
         logde<<"Save xlsx failed.";
         return  ;
     }
-
-#if 0
-    if(Global::_curveFileDataVtr.empty()){
-        // Load experiment data.
-        logde<<"experiment vtr size:"<<Global::_curveExperimentDataVtr.size();
-        for(Global::CurveExperimentData& ced:Global::_curveExperimentDataVtr){
-            if(_centralWidget->isCurrentCurve(ced.curve)){
-                logde<<"load experiment data.";
-                //                PointCalculate::setAnalysisData(ced.dataVtr);
-                dataVtr = ced.dataVtr;
-                Global::_smoothnessFileName = ced.fileName;
-                break;
-            }
-        }
-    }else{
-        // Load xlsx file data.
-        for(Global::CurveFileData& cfd:Global::_curveFileDataVtr){
-            for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
-                if(_centralWidget->isCurrentCurve(pti.curve)){
-                    //                    PointCalculate::setAnalysisData(pti.dataVtr);
-                    dataVtr = pti.dataVtr;
-                    Global::_smoothnessFileName = cfd.fileName;
-                    break;
-                }
-            }
-        }
-    }
-#endif
 }
 
 void XlsxHandler::writeAnalysisiFile(const QString filePath)
diff --git a/src/data/xlsxhandler.h b/src/data/xlsxhandler.h
index f613f88..ba04262 100644
--- a/src/data/xlsxhandler.h
+++ b/src/data/xlsxhandler.h
@@ -25,7 +25,7 @@ namespace XlsxHandler {
     void readAnalysisOperation(QXlsx::Worksheet*,int& startLineIndex,Global::CurveFileData&);
 
     void writeExperimentFile(const QString filePath);
-    void appendAnalysisOperation(const QString filePath);
+    void xlsxFileAppendAnalysisOperation(const QString filePath);
     void writeAnalysisiFile(const QString filePath);
     void writeAnalysisOperationDetail(QXlsx::Document*doc,const int row);
 
diff --git a/src/global.h b/src/global.h
index 9a8e3f7..3c7dd47 100644
--- a/src/global.h
+++ b/src/global.h
@@ -33,8 +33,9 @@ const double DefaultParamter = 8.177;
 const double OnsetAndEndSetRate = 0.01;
 
 //curve object name
-const QString objectNameExperiemnt("experiment");
-//const QString objectNameSmoothness("smoothness");
+const QString ObjectNameExperiemnt("experiment");
+const QString ObjectNameSmooth("smooth");
+const QString Separator("___");
 //
 enum LanguageType{
     Chinese,
@@ -91,8 +92,9 @@ struct ExperimentInfo{
 struct PhaseTotalInfo{
     int phaseIndex; // from 1 to 6.
     Phase phase;
-    QVector<ExperimentData> dataVtr;
     QCPCurve * curve;
+    QVector<ExperimentData> dataVtr;
+    QVector<ExperimentData> smoothDataVtr;
 };
 
 struct CurveFileData{
@@ -106,6 +108,7 @@ struct CurveExperimentData{
     QCPCurve * curve;
     QString fileName; // discard
     QVector<Global::ExperimentData> dataVtr;
+    QVector<ExperimentData> smoothDataVtr;
 };
 
 // Soft mode.
@@ -118,6 +121,7 @@ extern ExperimentInfo _experimentInfo;
 extern QVector<CurveExperimentData> _curveExperimentDataVtr;
 extern CurveExperimentData* _currentCurveExperimentDataPtr;
 extern bool _smoothnessFlag;
+
 #if 0
 // Smoothness data
 extern QVector<CurveExperimentData> _curveSmoothnessDataVtr;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 8b16c9c..0f3e488 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -135,6 +135,7 @@ void MainWindow::connections()
 #endif
 
     // mode
+
     //    connect(Global::instance(), &Global::sigModeModify,
     //            _centralWidget, &CentralWidget::slotModeModify);
 
@@ -161,7 +162,7 @@ void MainWindow::connections()
     connect(_specificHeatComparisonMethodForm,&SpecificHeatComparisonMethodForm::sigDrawCustomText,
             _centralWidget,&CentralWidget::slotDrawCustomText);
 
-    //SpecificHeatComparisonMethodForm
+    // SpecificHeatComparisonMethodForm
     connect(_eventHandler,&EventHandler::sigSetCurve,
             _specificHeatComparisonMethodForm,
             &SpecificHeatComparisonMethodForm::slotSetCurve);
@@ -183,9 +184,7 @@ void MainWindow::setActionEnable(const bool flag)
         ui->actionStart->setEnabled(true);
         ui->actionStop->setEnabled(true);
         ui->actionRealTimeWidget->setEnabled(true);
-    }
-    else
-    {
+    }else{
         ui->actionNew->setEnabled(false);
         ui->actionStart->setEnabled(false);
         ui->actionStop->setEnabled(false);
@@ -200,6 +199,7 @@ void MainWindow::setSubWidgetAttribute(QWidget *widget)
 
     widget->setFixedSize(widget->geometry().width(),widget->geometry().height());
 }
+
 #if 0
 bool MainWindow::saveExperimentFile(const QString fileName)
 {
@@ -273,25 +273,19 @@ bool MainWindow::saveFile(const QString fileName,const Global::Mode mode)
     // Save file.
     if(mode == Global::Mode::Analysis){
         if(Global::_curveFileDataVtr.empty()){
-            logde<<"analysis experiemt data...";
+            // 分析模式下，但是文件数据为空，说明做完实验没有保存数据。
             XlsxHandler::writeExperimentFile(filePath);
-            //            XlsxHandler::writeAnalysisOperation(filePath);
         }else{
-            logde<<"analysis xlsx data...";
+            // 分析模式下，直接保存从文件读取来的数据。
             if(Global::_smoothnessFlag){
                 XlsxHandler::writeSmoothnessFile(filePath);
             }else{
-                XlsxHandler::appendAnalysisOperation(filePath);
+                // 直接在xlsx文件的基础上添加分析数据。
+                XlsxHandler::xlsxFileAppendAnalysisOperation(filePath);
             }
         }
     }else if(mode == Global::Mode::Experiment){
-        logde<<"writeFile...";
         XlsxHandler::writeExperimentFile(filePath);
-
-#if 0
-        // Clear data.
-        Global::clearExperimentData();
-#endif
     }
 
     return true;
@@ -301,17 +295,18 @@ void MainWindow::smoothness(const int level)
 {
     Global::_smoothnessFlag = true;
     // process data.
-    QVector<Global::ExperimentData> targetDataVtr;
+    QVector<Global::ExperimentData> smoothDataVtr;
     QString objectName;
     QCPCurve ** curvePtrPtr;
 
     if(!Global::_curveExperimentDataVtr.empty()){
         for(auto & item:Global::_curveExperimentDataVtr){
             if(_centralWidget->isCurrentCurve(item.curve)){
-                smoothnessDetail(level,item.dataVtr);
+                smoothDataVtr = smoothnessDetail(level,item.dataVtr);
 
-                targetDataVtr = item.dataVtr;
-                objectName = Global::objectNameExperiemnt;
+                item.smoothDataVtr = smoothDataVtr;
+
+                objectName = Global::ObjectNameExperiemnt;
                 curvePtrPtr = &item.curve;
             }
         }
@@ -319,20 +314,12 @@ void MainWindow::smoothness(const int level)
         for(Global::CurveFileData &cfd :Global::_curveFileDataVtr){
             for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
                 if(_centralWidget->isCurrentCurve(pti.curve)){
-                    smoothnessDetail(level,pti.dataVtr);
+                    smoothDataVtr = smoothnessDetail(level,pti.dataVtr);
+
+                    pti.smoothDataVtr = smoothDataVtr;
 
-                    targetDataVtr = pti.dataVtr;
                     objectName = cfd.fileName;
                     curvePtrPtr = &pti.curve;
-
-                    //
-#if 0
-                    Global::ExperimentData ed;
-                    ed.sampleTemp = 2222;
-                    ed.dsc = 2222;
-
-                    pti.dataVtr.push_back(ed);
-#endif
                 }
             }
         }
@@ -342,101 +329,23 @@ void MainWindow::smoothness(const int level)
     _centralWidget->deleteCurrentCurve();
 
     //
-    _centralWidget->addSmoothnessCurveData(targetDataVtr,objectName);
+    QString wholeObjectName = Global::ObjectNameSmooth + Global::Separator + objectName;
+    _centralWidget->addCurveData(smoothDataVtr,wholeObjectName);
 
     *curvePtrPtr = _centralWidget->getCurrentCurve();
 
-
-#if 0
-    // Get current data vtr;
-    QVector<Global::ExperimentData> dataVtr;
-
-    if(Global::_curveFileDataVtr.empty()){
-        // Load experiment data.
-        logde<<"experiment vtr size:"<<Global::_curveExperimentDataVtr.size();
-        for(Global::CurveExperimentData& ced:Global::_curveExperimentDataVtr){
-            if(_centralWidget->isCurrentCurve(ced.curve)){
-                logde<<"load experiment data.";
-                //                PointCalculate::setAnalysisData(ced.dataVtr);
-                dataVtr = ced.dataVtr;
-                Global::_smoothnessFileName = ced.fileName;
-                break;
-            }
-        }
-    }else{
-        // Load xlsx file data.
-        for(Global::CurveFileData& cfd:Global::_curveFileDataVtr){
-            for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
-                if(_centralWidget->isCurrentCurve(pti.curve)){
-                    //                    PointCalculate::setAnalysisData(pti.dataVtr);
-                    dataVtr = pti.dataVtr;
-                    Global::_smoothnessFileName = cfd.fileName;
-                    break;
-                }
-            }
-        }
-    }
-
-    if(dataVtr.empty()){
-        return;
-    }
-
-    // smoothness.
-    Lowess::Config config;
-    config.smoothingFactor = level * 0.1;
-    config.robustnessIterations = 3;
-
-    std::vector<double> x;
-    std::vector<double> y;
-
-    for(Global::ExperimentData& ed:dataVtr)   {
-        if(Global::_axisMode == Global::AxisMode::SingleY){
-            x.push_back(ed.sampleTemp);
-        }else{
-            x.push_back(ed.runTime);
-        }
-
-        y.push_back(ed.dsc);
-    }
-
-    logde<<"smooth start...";
-    std::vector<double> yest = Lowess::smooth(x, y, config);
-    logde<<"smooth end...";
-
-    // Delete current curve;
-    _centralWidget->deleteCurrentCurve();
-
-    // Add new Curve.
-    QVector<Global::ExperimentData> newCurveDataVtr;
-    for(int i = 0; i < x.size();i++){
-        Global::ExperimentData ed;
-        if(Global::_axisMode == Global::AxisMode::SingleY){
-            ed.sampleTemp = x.at(i);
-            ed.runTime = dataVtr.at(i).runTime;
-        }else{
-            ed.runTime = x.at(i);
-            ed.sampleTemp = dataVtr.at(i).sampleTemp;
-        }
-
-        ed.dsc = yest.at(i);
-        ed.constantTempTime = dataVtr.at(i).constantTempTime;
-
-        newCurveDataVtr.push_back(ed);
-    }
-    _centralWidget->addSmoothnessCurveData(newCurveDataVtr);
-#endif
 }
 
-QVector<Global::ExperimentData> MainWindow::smoothnessDetail(const int level,QVector<Global::ExperimentData>& dataVtr)
+QVector<Global::ExperimentData> MainWindow::smoothnessDetail(const int level,const QVector<Global::ExperimentData>&dataVtr)
 {
     Lowess::Config config;
-    config.smoothingFactor = level * 0.1;
+    config.smoothingFactor = level * 0.01;
     config.robustnessIterations = 3;
 
     std::vector<double> x;
     std::vector<double> y;
 
-    for(const Global::ExperimentData& ed:dataVtr)   {
+    for(const Global::ExperimentData& ed:dataVtr){
         if(Global::_axisMode == Global::AxisMode::SingleY){
             x.push_back(ed.sampleTemp);
         }else{
@@ -450,8 +359,8 @@ QVector<Global::ExperimentData> MainWindow::smoothnessDetail(const int level,QVe
     std::vector<double> yest = Lowess::smooth(x, y, config);
     logde<<"smooth end...";
 
-    // target data vector.
-    QVector<Global::ExperimentData> targetVtr;
+    // result data vector.
+    QVector<Global::ExperimentData> resultVtr;
 
     for(int i = 0; i < x.size();i++){
         Global::ExperimentData ed;
@@ -466,13 +375,10 @@ QVector<Global::ExperimentData> MainWindow::smoothnessDetail(const int level,QVe
         ed.dsc = yest.at(i);
         ed.constantTempTime = dataVtr.at(i).constantTempTime;
 
-        targetVtr.push_back(ed);
+        resultVtr.push_back(ed);
     }
 
-    dataVtr.clear();
-    dataVtr = targetVtr;
-
-    return targetVtr;
+    return resultVtr;
 }
 
 void MainWindow::smoothnessExperimentData(const int level)
@@ -796,3 +702,40 @@ void MainWindow::on_actionSmoothness10_triggered()
     smoothness(10);
 }
 
+void MainWindow::on_actionOriginalData_triggered()
+{
+    Global::_smoothnessFlag = false;
+
+    // process data.
+    QVector<Global::ExperimentData> targetDataVtr;
+    QString objectName;
+    QCPCurve ** curvePtrPtr;
+
+    if(!Global::_curveExperimentDataVtr.empty()){
+        for(auto & item:Global::_curveExperimentDataVtr){
+            if(_centralWidget->isCurrentCurve(item.curve)){
+                targetDataVtr = item.dataVtr;
+
+                objectName = Global::ObjectNameExperiemnt;
+                curvePtrPtr = &item.curve;
+            }
+        }
+    }else{
+        for(Global::CurveFileData &cfd :Global::_curveFileDataVtr){
+            for(Global::PhaseTotalInfo& pti:cfd.phaseTotalVtr){
+                if(_centralWidget->isCurrentCurve(pti.curve)){
+                    targetDataVtr = pti.dataVtr;
+
+                    objectName = cfd.fileName;
+                    curvePtrPtr = &pti.curve;
+                }
+            }
+        }
+    }
+    //
+    _centralWidget->deleteCurrentCurve();
+
+    _centralWidget->addCurveData(targetDataVtr,objectName);
+
+    *curvePtrPtr = _centralWidget->getCurrentCurve();
+}
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 49e55e1..c6386e6 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -109,6 +109,8 @@ private slots:
     void on_actionSmoothness9_triggered();
     void on_actionSmoothness10_triggered();
 
+    void on_actionOriginalData_triggered();
+
 private:
     void setAnalysisData();
     void connections();
@@ -118,7 +120,7 @@ private:
     bool saveFile(const QString fileName,const Global::Mode);
 
     void smoothness(const int level);
-    QVector<Global::ExperimentData> smoothnessDetail(const int level,QVector<Global::ExperimentData>&);
+    QVector<Global::ExperimentData> smoothnessDetail(const int level,const QVector<Global::ExperimentData>&);
     void smoothnessExperimentData(const int level);
 
 private:
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index b7bc2bb..530868b 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -89,6 +89,7 @@
     <addaction name="actionEnthalpyCorrectionEdit"/>
     <addaction name="actionEnthalpyCorrectionSelection"/>
     <addaction name="menu_9"/>
+    <addaction name="actionOriginalData"/>
    </widget>
    <widget class="QMenu" name="menu_6">
     <property name="title">
@@ -410,6 +411,11 @@
     <string>10级</string>
    </property>
   </action>
+  <action name="actionOriginalData">
+   <property name="text">
+    <string>原始数据</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="images.qrc"/>
diff --git a/src/ui/centralwidget.cpp b/src/ui/centralwidget.cpp
index a7347c8..fee529f 100644
--- a/src/ui/centralwidget.cpp
+++ b/src/ui/centralwidget.cpp
@@ -129,13 +129,12 @@ void CentralWidget::deleteCurrentCurve()
     slotDelCurve(_currentCurve);
 }
 
-void CentralWidget::addSmoothnessCurveData(
+void CentralWidget::addCurveData(
         const QVector<ExperimentData> &dataVtr,const QString objectName)
 {
     PointCalculate::setAnalysisData(dataVtr);
 
     // Load data.
-    //    QVector<Global::ExperimentData> dataVtr;
     QVector<double> tVtr,xVtr, yVtr;
     int index = 0;
     for (const Global::ExperimentData &ed : dataVtr)
@@ -174,8 +173,6 @@ void CentralWidget::addSmoothnessCurveData(
                 minMaxYAxisPair.first,minMaxYAxisPair.second);
     _customPlot->yAxis->setRange(newYAxisPair.first ,
                                  newYAxisPair.second);
-    //
-    //    pti.curve = _currentCurve;
 
     // Add analysis operation data.
 #if 0
@@ -189,15 +186,6 @@ void CentralWidget::addSmoothnessCurveData(
 
     // Refresh ui.
     _customPlot->replot();
-
-#if 0
-    // Save data.
-    CurveExperimentData ced;
-    ced.curve = _currentCurve;
-    ced.dataVtr = dataVtr;
-
-    //  Global::_curveSmoothnessDataVtr.push_back(ced);
-#endif
 }
 
 void CentralWidget::setAnalysisMode(const AnalysisMode mode)
@@ -268,7 +256,7 @@ void CentralWidget::slotRecvCommonData(const CommonData &cd)
     if(!_currentCurve){
         logde<<"_currentCurve is nullptr";
         _currentCurve = new QCPCurve(_customPlot->xAxis, _customPlot->yAxis);
-        _currentCurve->setObjectName(Global::objectNameExperiemnt);
+        _currentCurve->setObjectName(Global::ObjectNameExperiemnt);
     }
 
     //    logde<<"temp:"<<cd.sample_temp<<",dsc:"<<cd.dsc;
diff --git a/src/ui/centralwidget.h b/src/ui/centralwidget.h
index b28a604..5586ac2 100644
--- a/src/ui/centralwidget.h
+++ b/src/ui/centralwidget.h
@@ -42,7 +42,7 @@ public:
     bool isCurrentCurve(QCPCurve* curve);
 
     void deleteCurrentCurve();
-    void addSmoothnessCurveData(const QVector<Global::ExperimentData> &,const QString objectName);
+    void addCurveData(const QVector<Global::ExperimentData> &,const QString objectName);
 
     QCPCurve * getCurrentCurve(){return _currentCurve;}
 signals: