diff --git a/src/ui/ChewingEditor.ui b/src/ui/ChewingEditor.ui
index 9b75637..9eadfba 100644
--- a/src/ui/ChewingEditor.ui
+++ b/src/ui/ChewingEditor.ui
@@ -92,6 +92,7 @@
     </property>
     <addaction name="actionAbout"/>
     <addaction name="actionAboutQt"/>
+    <addaction name="actionDocumentation"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuHelp"/>
@@ -122,6 +123,14 @@
     <enum>QAction::AboutQtRole</enum>
    </property>
   </action>
+  <action name="actionDocumentation">
+    <property name="text">
+     <string>Documentation</string>
+    </property>
+    <property name="menuRole">
+     <enum>QAction::ApplicationSpecificRole</enum>
+    </property>
+  </action>
   <action name="actionExit">
    <property name="text">
     <string>E&amp;xit</string>
diff --git a/src/view/ChewingEditor.cpp b/src/view/ChewingEditor.cpp
index 45bcfa1..464c5bd 100644
--- a/src/view/ChewingEditor.cpp
+++ b/src/view/ChewingEditor.cpp
@@ -24,6 +24,7 @@
 #include <QtGui>
 #include <QDebug>
 #include <QMessageBox>
+#include <QDesktopServices>
 
 #include "ChewingImporter.h"
 #include "ChewingExporter.h"
@@ -191,6 +192,10 @@ void ChewingEditor::showAbout()
     aboutBox.exec();
 }
 
+void ChewingEditor::showDocumentation(){
+    QDesktopServices::openUrl(QUrl("https://github.com/chewing/chewing-editor/wiki"));
+}
+
 void ChewingEditor::showDeleteConfirmWindow()
 {
     QString text = tr("Do you want to delete this phrase?");
@@ -355,4 +360,7 @@ void ChewingEditor::setupAboutWidget()
    connect(
         ui_.get()->actionAbout, SIGNAL(triggered()), this, SLOT(showAbout())
    );
+   connect(
+        ui_.get()->actionDocumentation, SIGNAL(triggered()), this, SLOT(showDocumentation())
+   );
 }
diff --git a/src/view/ChewingEditor.h b/src/view/ChewingEditor.h
index 99ac16a..a4b846d 100644
--- a/src/view/ChewingEditor.h
+++ b/src/view/ChewingEditor.h
@@ -48,6 +48,7 @@ public slots:
     void selectExportFile();
     void finishFileSelection(const QString& file);
     void showAbout();
+    void showDocumentation();
     void showDeleteConfirmWindow();
 
 private: