diff --git a/ClientCore/ClientCore.cpp b/ClientCore/ClientCore.cpp
index fc7058f..3bfa32d 100644
--- a/ClientCore/ClientCore.cpp
+++ b/ClientCore/ClientCore.cpp
@@ -8,7 +8,7 @@ ClientCore::ClientCore(QObject* parent) : QObject(parent)
 
 void ClientCore::Instance()
 {
-    //qDebug() << "Instance() thread:" << QThread::currentThread();
+    // qDebug() << "Instance() thread:" << QThread::currentThread();
     socket_ = new QTcpSocket(this);
     connect(socket_, &QTcpSocket::readyRead, this, &ClientCore::onReadyRead);
     connect(socket_, &QTcpSocket::disconnected, this, &ClientCore::onDisconnected);
@@ -20,7 +20,7 @@ ClientCore::~ClientCore()
 
 void ClientCore::DoConnect(const QString& ip, quint16 port)
 {
-    //qDebug() << "doConnect thread:" << QThread::currentThread();
+    // qDebug() << "doConnect thread:" << QThread::currentThread();
     emit connecting();
     if (!Connect(ip, port)) {
         emit conFailed();
@@ -88,6 +88,7 @@ void ClientCore::UseFrame(QSharedPointer<FrameBuffer> frame)
     }
     case FrameBufferType::FBT_SER_MSG_YOURID: {
         ownID_ = frame->data;
+        GlobalData::Ins()->SetLocalID(ownID_);
         qInfo() << QString(tr("own id: %1")).arg(ownID_);
         break;
     }
@@ -210,6 +211,7 @@ bool ClientCore::Send(const char* data, qint64 len)
 
 void ClientCore::SetRemoteID(const QString& id)
 {
+    GlobalData::Ins()->SetRemoteID(id);
     remoteID_ = id;
 }
 
@@ -225,9 +227,9 @@ QString ClientCore::GetOwnID()
 
 SocketWorker::SocketWorker(ClientCore* core, QObject* parent) : QThread(parent), core_(core)
 {
-    //connect(core_, &ClientCore::sigDisconnect, this, [this]() {
-    //    thread()->quit();
-    //});
+    // connect(core_, &ClientCore::sigDisconnect, this, [this]() {
+    //     thread()->quit();
+    // });
 }
 
 SocketWorker::~SocketWorker()
@@ -236,7 +238,7 @@ SocketWorker::~SocketWorker()
 
 void SocketWorker::run()
 {
-    //qDebug() << "SocketWorker thread:" << QThread::currentThread();
+    // qDebug() << "SocketWorker thread:" << QThread::currentThread();
     core_->Instance();
     exec();
 }
diff --git a/Gui/Control/CompareControl.cpp b/Gui/Control/CompareControl.cpp
index a339a54..b55d9ae 100644
--- a/Gui/Control/CompareControl.cpp
+++ b/Gui/Control/CompareControl.cpp
@@ -1,5 +1,10 @@
 #include "CompareControl.h"
 
+#include <QFile>
+#include <QXmlStreamReader>
+#include <QXmlStreamWriter>
+
+#include "GuiUtil/Public.h"
 #include "ui_CompareControl.h"
 
 Compare::Compare(QWidget* parent) : QWidget(parent), ui(new Ui::Compare)
@@ -16,30 +21,248 @@ Compare::~Compare()
 void Compare::InitControl()
 {
     InitTabWidget();
+
+    connect(ui->btnSave, &QPushButton::clicked, this, &Compare::Save);
+    connect(ui->btnLoad, &QPushButton::clicked, this, &Compare::Load);
+    connect(ui->btnLeft, &QPushButton::clicked, this, &Compare::TransToLeft);
+    connect(ui->btnRight, &QPushButton::clicked, this, &Compare::TransToRight);
+
+    LoadTitles();
 }
 
 void Compare::InitTabWidget()
 {
-     QStringList headers;
-     headers << tr("") << tr("LocalPath") << tr("RemotePath");
-     ui->tableWidget->setColumnCount(headers.size());
-     ui->tableWidget->setHorizontalHeaderLabels(headers);
-     ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
+    QStringList headers;
+    headers << tr("") << tr("LocalPath") << tr("RemotePath");
+    ui->tableWidget->setColumnCount(headers.size());
+    ui->tableWidget->setHorizontalHeaderLabels(headers);
+    ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
 
-     ui->comboBox->setEditable(true);
+    ui->comboBox->setEditable(true);
     // ui->tableWidget->setColumnWidth(0, 50);
-     ui->tableWidget->setColumnWidth(1, 500);
-     ui->tableWidget->setColumnWidth(2, 500);
+    ui->tableWidget->setColumnWidth(1, 500);
+    ui->tableWidget->setColumnWidth(2, 500);
 
-     ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
-     ui->tableWidget->verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
-     ui->tableWidget->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Fixed);
-     ui->tableWidget->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
-     ui->tableWidget->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Stretch);
+    ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
+    ui->tableWidget->verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
+    ui->tableWidget->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Fixed);
+    ui->tableWidget->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
+    ui->tableWidget->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Stretch);
 
     ui->tableWidget->setDragEnabled(false);
     ui->tableWidget->viewport()->setAcceptDrops(true);
     ui->tableWidget->setDropIndicatorShown(true);
     ui->tableWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);
     ui->tableWidget->setDragDropMode(QAbstractItemView::DropOnly);
+
+    ui->comboBox->setFixedWidth(100);
+}
+
+void Compare::Save()
+{
+    auto titleKey = ui->comboBox->currentText().trimmed();
+    if (titleKey.isEmpty()) {
+        FTCommon::msg(this, tr("Please select or input a title."));
+        return;
+    }
+
+    QFile file("CompareData.xml");
+    if (!file.open(QIODevice::ReadWrite | QIODevice::Text)) {
+        FTCommon::msg(this, tr("Failed to open data file."));
+        return;
+    }
+
+    QString existingContent;
+    QMap<QString, QStringList> dataMap;
+    if (file.size() > 0) {
+        existingContent = file.readAll();
+        file.seek(0);
+        QXmlStreamReader reader(existingContent);
+        while (!reader.atEnd()) {
+            if (reader.isStartElement() && reader.name() == "Entry") {
+                QString key = reader.attributes().value("title").toString();
+                QStringList paths;
+                while (!(reader.isEndElement() && reader.name() == "Entry")) {
+                    reader.readNext();
+                    if (reader.isStartElement() && reader.name() == "LocalPath") {
+                        paths << reader.readElementText();
+                    }
+                    if (reader.isStartElement() && reader.name() == "RemotePath") {
+                        paths << reader.readElementText();
+                    }
+                }
+                dataMap.insert(key, paths);
+            }
+            reader.readNext();
+        }
+    }
+
+    QStringList paths;
+    for (int row = 0; row < ui->tableWidget->rowCount(); ++row) {
+        QTableWidgetItem* localItem = ui->tableWidget->item(row, 1);
+        QTableWidgetItem* remoteItem = ui->tableWidget->item(row, 2);
+        paths << (localItem ? localItem->text() : "");
+        paths << (remoteItem ? remoteItem->text() : "");
+    }
+
+    dataMap[titleKey] = paths;
+
+    file.resize(0);
+    QXmlStreamWriter writer(&file);
+    writer.setAutoFormatting(true);
+    writer.writeStartDocument();
+    writer.writeStartElement("CompareData");
+
+    for (auto it = dataMap.begin(); it != dataMap.end(); ++it) {
+        writer.writeStartElement("Entry");
+        writer.writeAttribute("title", it.key());
+
+        const QStringList& pathList = it.value();
+        for (int i = 0; i < pathList.size(); i += 2) {
+            writer.writeTextElement("LocalPath", pathList[i]);
+            writer.writeTextElement("RemotePath", pathList[i + 1]);
+        }
+
+        writer.writeEndElement();
+    }
+
+    writer.writeEndElement();
+    writer.writeEndDocument();
+    file.close();
+
+    if (ui->comboBox->findText(titleKey) == -1) {
+        ui->comboBox->addItem(titleKey);
+    }
+
+    FTCommon::msg(this, tr("Data saved successfully."));
+}
+
+void Compare::Load()
+{
+    auto titleKey = ui->comboBox->currentText().trimmed();
+    if (titleKey.isEmpty()) {
+        FTCommon::msg(this, tr("Please select or input a title."));
+        return;
+    }
+
+    QFile file("CompareData.xml");
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        FTCommon::msg(this, tr("Failed to open data file."));
+        return;
+    }
+
+    QXmlStreamReader reader(&file);
+    bool found = false;
+
+    ui->tableWidget->setRowCount(0);
+    while (!reader.atEnd() && !found) {
+        if (reader.isStartElement() && reader.name() == "Entry") {
+            if (reader.attributes().value("title").toString() == titleKey) {
+                found = true;
+                QStringList paths;
+
+                while (!(reader.isEndElement() && reader.name() == "Entry")) {
+                    reader.readNext();
+                    if (reader.isStartElement() && reader.name() == "LocalPath") {
+                        paths << reader.readElementText();
+                    }
+                    if (reader.isStartElement() && reader.name() == "RemotePath") {
+                        paths << reader.readElementText();
+                    }
+                }
+                for (int i = 0; i < paths.size(); i += 2) {
+                    int row = ui->tableWidget->rowCount();
+                    ui->tableWidget->insertRow(row);
+
+                    QTableWidgetItem* localItem = new QTableWidgetItem(paths[i]);
+                    QTableWidgetItem* remoteItem = new QTableWidgetItem(paths[i + 1]);
+
+                    ui->tableWidget->setItem(row, 1, localItem);
+                    ui->tableWidget->setItem(row, 2, remoteItem);
+                }
+            }
+        }
+        reader.readNext();
+    }
+
+    file.close();
+    if (!found) {
+        FTCommon::msg(this, tr("No data found for the selected title."));
+    } else {
+        FTCommon::msg(this, tr("Data loaded successfully."));
+    }
+}
+
+void Compare::LoadTitles()
+{
+    QFile file("CompareData.xml");
+    if (!file.exists()) {
+        return;
+    }
+
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        FTCommon::msg(this, tr("Failed to open data file."));
+        return;
+    }
+
+    QString currentText = ui->comboBox->currentText();
+    ui->comboBox->clear();
+    ui->comboBox->setEditText(currentText);
+
+    QXmlStreamReader reader(&file);
+    while (!reader.atEnd()) {
+        if (reader.isStartElement() && reader.name() == "Entry") {
+            QString title = reader.attributes().value("title").toString();
+            if (!title.isEmpty() && ui->comboBox->findText(title) == -1) {
+                ui->comboBox->addItem(title);
+            }
+        }
+        reader.readNext();
+    }
+
+    file.close();
+
+    if (ui->comboBox->count() > 0) {
+        ui->comboBox->setCurrentIndex(0);
+    }
+}
+
+void Compare::TransToLeft()
+{
+    QVector<TransTask> tasks;
+    QModelIndexList indexList = ui->tableWidget->selectionModel()->selectedRows();
+
+    for (int i = 0; i < indexList.size(); ++i) {
+        const QTableWidgetItem* itemF = ui->tableWidget->item(indexList[i].row(), 1);
+        const QTableWidgetItem* itemT = ui->tableWidget->item(indexList[i].row(), 2);
+        TransTask task;
+        task.isUpload = false;
+        task.localId = GlobalData::Ins()->GetLocalID();
+        task.localPath = itemF->text();
+        task.remoteId = GlobalData::Ins()->GetRemoteID();
+        task.remotePath = itemT->text();
+        tasks.push_back(task);
+    }
+
+    emit sigTasks(tasks);
+}
+
+void Compare::TransToRight()
+{
+    QVector<TransTask> tasks;
+    QModelIndexList indexList = ui->tableWidget->selectionModel()->selectedRows();
+
+    for (int i = 0; i < indexList.size(); ++i) {
+        const QTableWidgetItem* itemF = ui->tableWidget->item(indexList[i].row(), 1);
+        const QTableWidgetItem* itemT = ui->tableWidget->item(indexList[i].row(), 2);
+        TransTask task;
+        task.isUpload = true;
+        task.localId = GlobalData::Ins()->GetLocalID();
+        task.localPath = itemF->text();
+        task.remoteId = GlobalData::Ins()->GetRemoteID();
+        task.remotePath = itemT->text();
+        tasks.push_back(task);
+    }                                   
+
+    emit sigTasks(tasks);
 }
diff --git a/Gui/Control/CompareControl.h b/Gui/Control/CompareControl.h
index 76c8904..05447da 100644
--- a/Gui/Control/CompareControl.h
+++ b/Gui/Control/CompareControl.h
@@ -1,6 +1,8 @@
 #ifndef COMPARECONTROL_H
 #define COMPARECONTROL_H
 
+#include <FileTrans.h>
+#include <QVector>
 #include <QWidget>
 
 namespace Ui {
@@ -15,10 +17,21 @@ public:
     explicit Compare(QWidget* parent = nullptr);
     ~Compare();
 
+signals:
+    void sigTasks(const QVector<TransTask>& tasks);
+
 private:
     void InitControl();
     void InitTabWidget();
 
+private:
+    void Save();
+    void Load();
+    void LoadTitles();
+
+    void TransToLeft();
+    void TransToRight();
+
 private:
     Ui::Compare* ui;
 };
diff --git a/Gui/Control/cpTableWidget.cpp b/Gui/Control/cpTableWidget.cpp
index b09d616..f8cd150 100644
--- a/Gui/Control/cpTableWidget.cpp
+++ b/Gui/Control/cpTableWidget.cpp
@@ -6,14 +6,27 @@
 #include <QPainter>
 #include <Util.h>
 
+#include "GuiUtil/Public.h"
+
 CpTableWidget::CpTableWidget(QWidget* parent) : QTableWidget(parent)
 {
+    contexMenu_ = new QMenu(this);
+    delAction_ = new QAction(tr("delete"), this);
+    connect(delAction_, &QAction::triggered, this, &CpTableWidget::deleteSelectedRows);
+    contexMenu_->addAction(delAction_);
 }
 
 CpTableWidget::~CpTableWidget()
 {
 }
 
+void CpTableWidget::contextMenuEvent(QContextMenuEvent* event)
+{
+    if (selectedItems().count() > 0) {
+        contexMenu_->exec(event->globalPos());
+    }
+}
+
 void CpTableWidget::dropEvent(QDropEvent* event)
 {
     if (!event->mimeData()->hasFormat("application/x-qabstractitemmodeldatalist")) {
@@ -78,3 +91,22 @@ void CpTableWidget::dragEnterEvent(QDragEnterEvent* event)
         event->ignore();
     }
 }
+
+void CpTableWidget::deleteSelectedRows()
+{
+    auto r = FTCommon::affirm(this, tr("confirm"), tr("delete selected rows?"));
+    if (!r) {
+        return;
+    }
+    QList<int> rowsToDelete;
+    for (QTableWidgetItem* item : selectedItems()) {
+        int row = item->row();
+        if (!rowsToDelete.contains(row)) {
+            rowsToDelete.append(row);
+        }
+    }
+    std::sort(rowsToDelete.begin(), rowsToDelete.end(), std::greater<int>());
+    for (int row : rowsToDelete) {
+        removeRow(row);
+    }
+}
\ No newline at end of file
diff --git a/Gui/Control/cpTableWidget.h b/Gui/Control/cpTableWidget.h
index b1b36da..b33e94d 100644
--- a/Gui/Control/cpTableWidget.h
+++ b/Gui/Control/cpTableWidget.h
@@ -1,8 +1,10 @@
 #ifndef CP_TABLEWIDET_H
 #define CP_TABLEWIDET_H
 
-#include <QTableWidget>
+#include <QAction>
 #include <QDropEvent>
+#include <QMenu>
+#include <QTableWidget>
 
 class CpTableWidget : public QTableWidget
 {
@@ -14,6 +16,14 @@ public:
 protected:
     void dropEvent(QDropEvent* event) override;
     void dragEnterEvent(QDragEnterEvent* event);
+    void contextMenuEvent(QContextMenuEvent* event) override;
+
+private slots:
+    void deleteSelectedRows();
+
+private:
+    QMenu* contexMenu_;
+    QAction* delAction_;
 };
 
-#endif // CP_TABLEWIDET_H
+#endif   // CP_TABLEWIDET_H
diff --git a/Gui/frelayGUI.cpp b/Gui/frelayGUI.cpp
index 6c52b9e..aca9a10 100644
--- a/Gui/frelayGUI.cpp
+++ b/Gui/frelayGUI.cpp
@@ -53,6 +53,7 @@ void frelayGUI::InitControl()
 
     connect(localFile_, &FileManager::sigSendTasks, this, &frelayGUI::HandleTask);
     connect(remoteFile_, &FileManager::sigSendTasks, this, &frelayGUI::HandleTask);
+    connect(compare_, &Compare::sigTasks, this, &frelayGUI::HandleTask);
 }
 
 void frelayGUI::ControlSignal()
diff --git a/Util/Util.cpp b/Util/Util.cpp
index 7327500..cbf6a50 100644
--- a/Util/Util.cpp
+++ b/Util/Util.cpp
@@ -138,13 +138,25 @@ GlobalData* GlobalData::Ins()
 void GlobalData::SetLocalRoot(const QString& root)
 {
     QMutexLocker locker(&mutex_);
-	LocalRoot_ = root;
+    LocalRoot_ = root;
+}
+
+void GlobalData::SetLocalID(const QString& id)
+{
+    QMutexLocker locker(&mutex_);
+    LocalID_ = id;
+}
+
+void GlobalData::SetRemoteID(const QString& id)
+{
+    QMutexLocker locker(&mutex_);
+    RemoteID_ = id;
 }
 
 void GlobalData::SetRemoteRoot(const QString& root)
 {
     QMutexLocker locker(&mutex_);
-	RemoteRoot_ = root;
+    RemoteRoot_ = root;
 }
 
 QString GlobalData::GetLocalRoot() const
@@ -152,7 +164,17 @@ QString GlobalData::GetLocalRoot() const
     return LocalRoot_;
 }
 
+QString GlobalData::GetLocalID() const
+{
+    return LocalID_;
+}
+
 QString GlobalData::GetRemoteRoot() const
 {
     return RemoteRoot_;
+}
+
+QString GlobalData::GetRemoteID() const
+{
+    return RemoteID_;
 }
\ No newline at end of file
diff --git a/Util/Util.h b/Util/Util.h
index 1b31492..cf9b59a 100644
--- a/Util/Util.h
+++ b/Util/Util.h
@@ -13,9 +13,13 @@ public:
 
 public:
     void SetLocalRoot(const QString& root);
+    void SetLocalID(const QString& id);
     void SetRemoteRoot(const QString& root);
+    void SetRemoteID(const QString& id);
     QString GetLocalRoot() const;
+    QString GetLocalID() const;
     QString GetRemoteRoot() const;
+    QString GetRemoteID() const;
 
 private:
     GlobalData() = default;
@@ -24,6 +28,8 @@ public:
     QMutex mutex_;
     QString LocalRoot_;
     QString RemoteRoot_;
+    QString LocalID_;
+    QString RemoteID_;
 };
 
 class Util : public QObject