diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -440,6 +440,7 @@ void MainWindow::saveAllSettings(QSettin
     dataFormatPanel.saveSettings(settings);
     channelMan.saveSettings(settings);
     plotControlPanel.saveSettings(settings);
+    plotMan->saveSettings(settings);
     commandPanel.saveSettings(settings);
 }
 
@@ -450,6 +451,7 @@ void MainWindow::loadAllSettings(QSettin
     dataFormatPanel.loadSettings(settings);
     channelMan.loadSettings(settings);
     plotControlPanel.loadSettings(settings);
+    plotMan->loadSettings(settings);
     commandPanel.loadSettings(settings);
 }
 
diff --git a/src/plotmanager.cpp b/src/plotmanager.cpp
--- a/src/plotmanager.cpp
+++ b/src/plotmanager.cpp
@@ -22,7 +22,7 @@
 #include "plot.h"
 #include "plotmanager.h"
 #include "utils.h"
-
+#include "setting_defines.h"
 
 PlotManager::PlotManager(QWidget* plotArea, QObject *parent) :
     QObject(parent),
@@ -372,3 +372,36 @@ void PlotManager::onNumOfSamplesChanged(
         plot->onNumOfSamplesChanged(value);
     }
 }
+
+void PlotManager::saveSettings(QSettings* settings)
+{
+    settings->beginGroup(SettingGroup_Plot);
+    settings->setValue(SG_Plot_DarkBackground, darkBackgroundAction.isChecked());
+    settings->setValue(SG_Plot_Grid, showGridAction.isChecked());
+    settings->setValue(SG_Plot_MinorGrid, showMinorGridAction.isChecked());
+    settings->setValue(SG_Plot_Legend, showLegendAction.isChecked());
+    settings->setValue(SG_Plot_MultiPlot, showMultiAction.isChecked());
+    settings->endGroup();
+}
+
+void PlotManager::loadSettings(QSettings* settings)
+{
+    settings->beginGroup(SettingGroup_Plot);
+    darkBackgroundAction.setChecked(
+        settings->value(SG_Plot_DarkBackground, darkBackgroundAction.isChecked()).toBool());
+    darkBackground(darkBackgroundAction.isChecked());
+    showGridAction.setChecked(
+        settings->value(SG_Plot_Grid, showGridAction.isChecked()).toBool());
+    showGrid(showGridAction.isChecked());
+    showMinorGridAction.setChecked(
+        settings->value(SG_Plot_MinorGrid, showMinorGridAction.isChecked()).toBool());
+    showMinorGridAction.setEnabled(showGridAction.isChecked());
+    showMinorGrid(showMinorGridAction.isChecked());
+    showLegendAction.setChecked(
+        settings->value(SG_Plot_Legend, showLegendAction.isChecked()).toBool());
+    showLegend(showLegendAction.isChecked());
+    showMultiAction.setChecked(
+        settings->value(SG_Plot_MultiPlot, showMultiAction.isChecked()).toBool());
+    setMulti(showMultiAction.isChecked());
+    settings->endGroup();
+}
diff --git a/src/plotmanager.h b/src/plotmanager.h
--- a/src/plotmanager.h
+++ b/src/plotmanager.h
@@ -25,6 +25,7 @@
 #include <QScrollArea>
 #include <QVBoxLayout>
 #include <QList>
+#include <QSettings>
 
 #include <qwt_plot_curve.h>
 #include "plot.h"
@@ -50,6 +51,10 @@ public:
     unsigned numOfCurves();
     /// Returns the list of actions to be inserted into the `View` menu
     QList<QAction*> menuActions();
+    /// Stores plot settings into a `QSettings`.
+    void saveSettings(QSettings* settings);
+    /// Loads plot settings from a `QSettings`.
+    void loadSettings(QSettings* settings);
 
 public slots:
     /// Enable/Disable multiple plot display
diff --git a/src/setting_defines.h b/src/setting_defines.h
--- a/src/setting_defines.h
+++ b/src/setting_defines.h
@@ -75,6 +75,11 @@ const char SG_Plot_NumOfSamples[] = "num
 const char SG_Plot_AutoScale[] = "autoScale";
 const char SG_Plot_YMax[] = "yMax";
 const char SG_Plot_YMin[] = "yMin";
+const char SG_Plot_DarkBackground[] = "darkBackground";
+const char SG_Plot_Grid[] = "grid";
+const char SG_Plot_MinorGrid[] = "minorGrid";
+const char SG_Plot_Legend[] = "legend";
+const char SG_Plot_MultiPlot[] = "multiPlot";
 
 // command setting keys
 const char SG_Commands_Command[] = "command";