diff --git a/backup-daemon/backup-daemon.pro b/backup-daemon/backup-daemon.pro
index fe773dd..a1ba10f 100755
--- a/backup-daemon/backup-daemon.pro
+++ b/backup-daemon/backup-daemon.pro
@@ -31,6 +31,7 @@ HEADERS += \
     ../common/spinlock_mutex.h \
     ../common/utils.h \
     backupmanager_adaptor.h \
+    customizesystembackupproxy.h \
     databackupproxy.h \
     datarestoreproxy.h \
     deletebackupproxy.h \
@@ -59,6 +60,7 @@ SOURCES += \
         ../common/reflect.cpp \
         ../common/utils.cpp \
         backupmanager_adaptor.cpp \
+        customizesystembackupproxy.cpp \
         databackupproxy.cpp \
         datarestoreproxy.cpp \
         deletebackupproxy.cpp \
diff --git a/backup-daemon/customizesystembackupproxy.cpp b/backup-daemon/customizesystembackupproxy.cpp
index e69de29..92a8661 100644
--- a/backup-daemon/customizesystembackupproxy.cpp
+++ b/backup-daemon/customizesystembackupproxy.cpp
@@ -0,0 +1,556 @@
+#include "customizesystembackupproxy.h"
+
+#include <QStorageInfo>
+#include <QDateTime>
+#include <QDebug>
+#include <QTimer>
+#include <kysec/status.h>
+#include "../common/utils.h"
+#include "../common/mydusizetool.h"
+#include "mymountproxy.h"
+
+IMPLEMENT_DYNCREATE(CustomizeSystemBackupProxy)
+
+CustomizeSystemBackupProxy::CustomizeSystemBackupProxy()
+{
+    m_bSuccess = false;
+    m_isFinished = false;
+    m_size = 0;
+    m_calc = new CalcBackupSize(this);
+    m_isOnlyCheck = true;
+    m_mksquashfs = nullptr;
+    m_isForce = false;
+
+    connect(this, &CustomizeSystemBackupProxy::cancel, this, &CustomizeSystemBackupProxy::cancelEx);
+}
+
+CustomizeSystemBackupProxy::~CustomizeSystemBackupProxy()
+{
+    delete m_calc;
+    m_calc = nullptr;
+
+    delete m_mksquashfs;
+    m_mksquashfs = nullptr;
+
+    QString rm("rm -rf ");
+    rm += m_imgPath;
+    QProcess::execute(rm);
+}
+
+/**
+ * @brief 环境检测
+ * @return
+ */
+bool CustomizeSystemBackupProxy::checkEnvEx()
+{
+    qDebug() << "CustomizeSystemBackupProxy::checkEnv invoke begin";
+
+    // 1、检查/backup分区是否挂载上(不管是本地磁盘还是u盘设备，都得保证/backup挂载上); 若没挂载，挂载
+    MyMountProxy mountProxy;
+    if ( MountResult::MOUNTED != mountProxy.mountBackupPartition() ) {
+        emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
+        return false;
+    }
+
+    QString backupPath(m_backupWrapper.m_prefixDestPath);
+    backupPath.replace("//", "/");
+    QStorageInfo udisk(backupPath);
+    QString udisk_type = udisk.fileSystemType();
+    if (udisk_type == "vfat") {
+        qCritical() << m_backupWrapper.m_prefixDestPath + " udisk's filesystemtype is vfat";
+        emit checkResult(int(BackupResult::UDISK_FILESYSTEM_TYPE_IS_VFAT));
+        return false;
+    }
+    if (udisk.isReadOnly()) {
+        // 只读挂载的U盘
+        qCritical() << QString("udisk(%s) is readonly filesystem").arg(m_backupWrapper.m_prefixDestPath);
+        emit checkResult(int(BackupResult::UDISK_FILESYSTEM_IS_READONLY));
+        return false;
+    }
+
+    QTimer::singleShot(1*1000, this, &CustomizeSystemBackupProxy::checkDestDirExists);
+    // 2、计算备份大小
+    calcSizeForBackup();
+
+    qDebug() << "CustomizeSystemBackupProxy::checkEnv invoke end";
+    return true;
+}
+
+/**
+ * @brief 执行备份逻辑
+ */
+void CustomizeSystemBackupProxy::doWorkEx()
+{
+    qDebug() << "CustomizeSystemBackupProxy::doWorkEx invoke begin";
+
+    m_isOnlyCheck = false;
+    // 环境检测
+    checkEnvEx();
+
+    qDebug() << "CustomizeSystemBackupProxy::doWorkEx invoke end";
+}
+
+void CustomizeSystemBackupProxy::cancelEx()
+{
+    m_bCancel = true;
+    if (!m_isFinished) {
+        emit this->checkResult(int(BackupResult::START_CANCEL));
+
+        if (m_calc)
+            m_calc->stop();
+        if (m_mksquashfs)
+            m_mksquashfs->stop();
+
+        QProcess::execute("sync");
+        Utils::wait(5);
+        deleteFailedData();
+        emit this->checkResult(int(BackupResult::CANCEL_SUCCESS));
+    }
+}
+
+/**
+ * @brief 失败则删除相应数据
+ */
+void CustomizeSystemBackupProxy::deleteFailedData()
+{
+    if (m_curUuid.isEmpty())
+        return;
+
+    // 1、删除备份目录
+    QString destPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
+    destPath.replace("//", "/");
+    QStringList args;
+    args << "-rf";
+    args << destPath;
+    QProcess::execute("rm", args);
+
+    // 2、删除xml文件中的备份项
+    QString xmlPath = m_backupWrapper.m_prefixDestPath + BACKUP_XML_PATH;
+    xmlPath.replace("//", "/");
+    ParseBackupList parse(xmlPath);
+    parse.deleteItem(m_curUuid);
+}
+
+/**
+ * @brief 判断是否增量备份
+ * @return true,增量备份； false，全量备份
+ */
+bool CustomizeSystemBackupProxy::isIncBackup()
+{
+    QString backupPath;
+    ParseBackupList::BackupPoint point;
+    if (m_backupWrapper.m_uuid.isEmpty()) {
+        QString xmlPath(m_backupWrapper.m_prefixDestPath + BACKUP_XML_PATH);
+        xmlPath.replace("//", "/");
+        ParseBackupList parser(xmlPath);
+        point = parser.getLastSysBackupPoint();
+        if (point.m_uuid.isEmpty())
+            return false;
+        backupPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + point.m_uuid + "/data";
+    } else {
+        backupPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/data";
+    }
+
+    backupPath.replace("//", "/");
+    if (Utils::isDirExist(backupPath)) {
+        m_backupWrapper.m_baseUuid = point.m_uuid;
+        m_backupWrapper.m_bIncrement = true;
+        m_backupWrapper.m_type = BackupType::INC_BACKUP_SYSTEM;
+        return true;
+    }
+    return false;
+}
+
+/**
+ * @brief 校验剩余空间是否满足备份
+ */
+void CustomizeSystemBackupProxy::checkFreeCapacity(qint64 itotalSize)
+{
+    qDebug() << "CustomizeSystemBackupProxy::checkFreeCapacity invoke begin";
+
+    // 如果是取消了操作，则不再发送其它信息
+    if (m_bCancel)
+        return ;
+
+    // 拔掉U盘的场景
+    if (m_isForce) {
+        emit this->checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
+        return ;
+    }
+
+    // 1、计算待备份数据的大小
+    m_size = itotalSize;
+    // 备份过程中会有一些临时文件产生，会占用一部分空间，故我们预留500M的空间
+    itotalSize += 500 * MB;
+
+    // 2、计算备份分区剩余空间大小
+    QString backupPath(m_backupWrapper.m_prefixDestPath);
+    backupPath.replace("//", "/");
+    QStorageInfo backupDisk(backupPath);
+    qint64 freeSize = backupDisk.bytesAvailable();
+
+    // 3、校验空间是否足够
+    if (itotalSize > freeSize) {
+        emit checkResult(int(BackupResult::BACKUP_CAPACITY_IS_NOT_ENOUGH));
+    } else {
+        emit checkResult(int(BackupResult::CHECK_ENV_SUCCESS));
+    }
+
+    if (m_isOnlyCheck)
+        return ;
+
+    // 4、判断是否需要先压缩成img文件，压缩后一般小于原大小的70%
+    itotalSize = itotalSize * 7 / 10;
+    QHash<QString, QString> hash = Utils::getLeftSizeOfPartitions();
+    for (QHash<QString, QString>::const_iterator it = hash.constBegin(); it != hash.constEnd(); ++it) {
+        QString path = it.key();
+        QString size = it.value();
+        if (size.endsWith("G")) {
+            size.replace("G", "");
+            qint64 leftSize = size.toLongLong() * 1000 * 1000 * 1000;
+            if (itotalSize < leftSize) {
+                m_imgPath = path + IMGBACKUP_PATH;
+                m_imgPath.replace("//", "/");
+                break ;
+            }
+        }
+    }
+
+    // 5、开始制作img或开始备份
+    if (m_imgPath.isEmpty()) {
+        doBackup();
+    } else {
+        doMksqushfs();
+    }
+
+    qDebug() << "CustomizeSystemBackupProxy::checkFreeCapacity invoke end";
+}
+
+/**
+ * @brief 计算备份所需空间大小
+ * @return 计算备份所需空间大小,单位字节
+ */
+void CustomizeSystemBackupProxy::calcSizeForBackup()
+{
+    // 拼接备份源路径和目标路径，测试所需备份空间大小；目标路径为一虚拟路径
+    QString srcPath = Utils::getSysRootPath();
+    srcPath += "/";
+    srcPath.replace("//", "/");
+    QString destPath = Utils::getSysRootPath();
+    destPath += CHECK_PATH;
+    destPath.replace("//", "/");
+    Utils::mkpath(destPath);
+
+    QStringList args = getRsyncArgs(CustomizeSystemBackupScene::TRY_SYSTEM_BACKUP);
+    args << srcPath;
+    args << destPath;
+
+    connect(m_calc, &CalcBackupSize::finished, this, &CustomizeSystemBackupProxy::checkFreeCapacity);
+    m_calc->start(args, false);
+}
+
+/**
+ * @brief 根据场景获取rsync命令参数
+ * @param scene，场景
+ * @return rsync的参数信息
+ */
+QStringList CustomizeSystemBackupProxy::getRsyncArgs(CustomizeSystemBackupScene scene)
+{
+    QStringList args;
+    QStringList excludes;
+
+    switch (scene) {
+    case CustomizeSystemBackupScene::SYSTEM_BACKUP :
+        args << "-avAHXr";
+        args << "--info=progress2";
+        args << "--no-inc-recursive";
+        args << "--ignore-missing-args";
+        break ;
+    case CustomizeSystemBackupScene::TRY_SYSTEM_BACKUP :
+        args << "-aAHXrn";
+        args << "--stats";
+        args << "--ignore-missing-args";
+        break ;
+    case CustomizeSystemBackupScene::MKSQUASHFS :
+        Utils::excludeFstabBindPath(excludes);
+        // --exclude=排除路径设置
+        for (QString item : m_backupWrapper.m_backupExcludePaths) {
+            if (excludes.contains(item))
+                continue;
+            if (item.endsWith("/*")) {
+                item.replace("/*", "");
+            }
+
+            args << "-e" << item;
+        }
+        args << "-e" << m_imgPath;
+        return args;
+    default:
+        return args;
+    }
+
+    // --exclude=排除路径设置
+    for (const QString & item : m_backupWrapper.m_backupExcludePaths) {
+        args << QString("--exclude=%1").arg(item);
+    }
+
+    return args;
+}
+
+/**
+ * @brief mksqushfs
+ */
+void CustomizeSystemBackupProxy::doMksqushfs()
+{
+    qDebug() << "CustomizeSystemBackupProxy::doMksqushfs invoke begin";
+
+    m_mksquashfs = new MkSquashFSProcess(this);
+    connect(m_mksquashfs, &MkSquashFSProcess::progress, this, &CustomizeSystemBackupProxy::progress);
+    connect(m_mksquashfs, &MkSquashFSProcess::finished, this, [=](bool result) {
+        // 如果是取消了操作，则不再发送其它信息
+        if (m_bCancel)
+            return ;
+
+        if (result && !m_isForce) {
+            // 开始备份
+            doBackup();
+        } else {
+            m_isFinished = true;
+            emit checkResult(int(BackupResult::MKSQUASHFS_DO_FAIL));
+        }
+    });
+    Utils::mkpath(m_imgPath);
+
+    QString srcPath = Utils::getSysRootPath();
+    srcPath += "/";
+    srcPath.replace("//", "/");
+    QString dstImg = m_imgPath + "/" + UDISK_MKSQUASHFS_IMG_NAME;
+    QStringList args;
+    args << srcPath << dstImg;
+    args.append(getRsyncArgs(CustomizeSystemBackupScene::MKSQUASHFS));
+
+    if (m_mksquashfs->start(args)) {
+        emit checkResult(int(BackupResult::MKSQUASHFS_START_SUCCESS));
+    } else {
+        emit checkResult(int(BackupResult::MKSQUASHFS_DO_FAIL));
+    }
+
+    qDebug() << "CustomizeSystemBackupProxy::doMksqushfs invoke end";
+}
+
+/**
+ * @brief 备份
+ */
+void CustomizeSystemBackupProxy::doBackup()
+{
+    qDebug() << "CustomizeSystemBackupProxy::doBackup invoke begin";
+
+    // 准备
+    if (!doPrepare())
+        return ;
+
+    // 启动备份efi, 修改为和其它目录统一备份，不再单独进行备份
+//    if (!backupEfi()) {
+//        emit checkResult(int(BackupResult::EFI_RSYNC_FAIL));
+//        return ;
+//    }
+
+    if (m_imgPath.isEmpty()) {
+        // 启动系统备份
+        backupSystem();
+    } else {
+        // 备份img文件
+        backupImg();
+    }
+
+
+    qDebug() << "CustomizeSystemBackupProxy::doBackup invoke end";
+}
+
+/**
+ * @brief 备份准备
+ * @return true,准备成功；false，准备失败
+ */
+bool CustomizeSystemBackupProxy::doPrepare()
+{
+    qDebug() << "CustomizeSystemBackupProxy::doPrepare invoke begin";
+
+    m_bSuccess = false;
+
+    // 1、设置当前备份的Uuid
+    m_curUuid += Utils::createUuid();
+
+    // 2、准备备份目录及文件
+    m_destPath = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid + "/data";
+    m_destPath.replace("//", "/");
+    if (!Utils::mkpath(m_destPath)) {
+        qCritical() << QString("mkdir %1 failed !").arg(m_destPath) ;
+        emit checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
+        return false;
+    }
+
+    QString userFile = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid + "/" + PATHS_USER_FILE;
+    userFile.replace("//", "/");
+    if (!Utils::writeFileByLines(userFile, m_backupWrapper.m_backupPaths)) {
+        qCritical() << QString("create file %1 failed !").arg(userFile);
+        emit checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
+        return false;
+    }
+
+    QString excludeUserFile = m_backupWrapper.m_prefixDestPath + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid + "/" + EXCLUDE_PATHS_USER_FILE;
+    excludeUserFile.replace("//", "/");
+    if (!Utils::writeFileByLines(excludeUserFile, m_backupWrapper.m_backupExcludePaths)) {
+        qCritical() << QString("create file %1 failed !").arg(excludeUserFile);
+        emit checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
+        return false;
+    }
+
+    // 3、记录/backup/snapshots/backuplist.xml文件
+    if (!recordBackupPoint()) {
+        qCritical() << "add or update item to backuplist.xml failed !";
+        return false;
+    }
+
+    qDebug() << "CustomizeSystemBackupProxy::doPrepare invoke end";
+    return true;
+}
+
+/**
+ * @brief 记录/backup/snapshots/backuplist.xml文件
+ * @return true-成功；false-失败
+ */
+bool CustomizeSystemBackupProxy::recordBackupPoint()
+{
+    m_backupPoint.m_backupName = m_backupWrapper.m_backupName;
+    m_backupPoint.m_uuid = m_curUuid;
+    m_backupPoint.m_iPosition = m_backupWrapper.m_iPosition;
+    m_backupPoint.m_type = m_backupWrapper.m_type;
+    m_backupPoint.m_size = Utils::StringBySize(m_size);
+    m_backupPoint.m_time = QDateTime::currentDateTime().toString("yy-MM-dd hh:mm:ss");
+    m_backupPoint.m_state = BACKUP_PARSE_STATE_FAIL_STRTING;
+    m_backupPoint.m_os = SystemInfo::m_os;
+    m_backupPoint.m_arch = SystemInfo::m_arch;
+    m_backupPoint.m_archdetect = SystemInfo::m_archDetect;
+    QString xmlPath = m_backupWrapper.m_prefixDestPath + BACKUP_XML_PATH;
+    xmlPath.replace("//", "/");
+    ParseBackupList parse(xmlPath);
+    if (m_backupWrapper.m_uuid.isEmpty() || !m_backupWrapper.m_bIncrement) {
+        if (parse.addItem(m_backupPoint) != ParseBackupList::SUCCESS) {
+            emit checkResult(int(BackupResult::WRITE_STORAGEINFO_ADD_ITEM_FAIL));
+            return false;
+        }
+    } else {
+        if (parse.updateItem(m_backupPoint) != ParseBackupList::SUCCESS) {
+            emit checkResult(int(BackupResult::WRITE_STORAGEINFO_UPDATE_ITEM_FAIL));
+            return false;
+        }
+    }
+
+    return true;
+}
+
+/**
+ * @brief 备份系统
+ * @return true，启动备份成功；false，启动备份失败
+ */
+bool CustomizeSystemBackupProxy::backupSystem()
+{
+    qDebug() << "CustomizeSystemBackupProxy::backupSystem invoke begin";
+
+    // 全量备份场景
+    QStringList args = getRsyncArgs(CustomizeSystemBackupScene::SYSTEM_BACKUP);
+
+    // 拼接备份源路径和目标路径
+    QString srcPath = Utils::getSysRootPath();
+    srcPath += "/";
+    srcPath.replace("//", "/");
+    args << srcPath;
+    QString destPath = m_destPath + "/";
+    destPath.replace("//", "/");
+    args << destPath;
+
+    return backup(args);
+}
+
+/**
+ * @brief 备份系统img文件
+ * @return true，启动备份成功；false，启动备份失败
+ */
+bool CustomizeSystemBackupProxy::backupImg()
+{
+    qDebug() << "CustomizeSystemBackupProxy::backupImg invoke";
+
+    QStringList args;
+    QString srcPath = m_imgPath + "/" + UDISK_MKSQUASHFS_IMG_NAME;
+    QString destPath = m_destPath + "/";
+    destPath.replace("//", "/");
+    args << srcPath << destPath;
+
+    return backup(args);
+}
+
+/**
+ * @brief 备份公共逻辑
+ * @param args
+ * @return true，启动备份成功；false，启动备份失败
+ */
+bool CustomizeSystemBackupProxy::backup(const QStringList &args)
+{
+    qDebug() << "CustomizeSystemBackupProxy::backup invoke begin";
+
+
+    emit checkResult(int(BackupResult::BACKUP_START_SUCCESS));
+
+    do_kylin_security(m_destPath);
+
+    qDebug() << "CustomizeSystemBackupProxy::backup invoke end";
+    return true;
+}
+
+void CustomizeSystemBackupProxy::do_kylin_security(const QString& dstDir)
+{
+    int ret = 0;
+    ret = kysec_getstatus();
+    if (ret > 0) {
+        QString seFilePath(dstDir + "/.exectl");
+        QFile file(seFilePath);
+        file.open(QIODevice::WriteOnly);
+        file.close();
+    }
+}
+
+/**
+ * @brief 校验移动盘是否还在
+ * @return: bool,存在返回true；不存在返回false
+ * @author: zhaominyong
+ * @since: 2021/05/24
+ * @note:
+ *      add by zhaominyong at 2021/05/24 for bug:54377 【备份还原】备份数据到U盘的过程中拔出U盘，备份还原工具仍然一直显示正在备份数据
+ */
+bool CustomizeSystemBackupProxy::checkDestDirExists()
+{
+    if (!m_isFinished)
+    {
+        // 拔掉U盘后，没有响应的场景（怀疑可能是某应用程序关闭引起，希望不是dbus服务关掉了）
+        if (m_isForce) {
+            emit this->workResult(false);
+            return false;
+        }
+
+        if (Utils::isDirEmpty(m_backupWrapper.m_prefixDestPath)) {
+            qCritical() << QString("dstDir %s is not exist!").arg(m_backupWrapper.m_prefixDestPath);
+            m_isForce = true;
+            if (m_calc != nullptr)
+                m_calc->stop();
+            if (m_mksquashfs != nullptr)
+                m_mksquashfs->stop();
+            // 10s钟后如果还没有退出，则强制退出
+            QTimer::singleShot(10*1000, this, &CustomizeSystemBackupProxy::checkDestDirExists);
+        } else {
+            QTimer::singleShot(1*1000, this, &CustomizeSystemBackupProxy::checkDestDirExists);
+        }
+    }
+
+    return true;
+}
+
diff --git a/backup-daemon/customizesystembackupproxy.h b/backup-daemon/customizesystembackupproxy.h
index 115f4d4..2364ca0 100644
--- a/backup-daemon/customizesystembackupproxy.h
+++ b/backup-daemon/customizesystembackupproxy.h
@@ -1,4 +1,118 @@
 #ifndef CUSTOMIZESYSTEMBACKUPPROXY_H
 #define CUSTOMIZESYSTEMBACKUPPROXY_H
 
+#include "workerfactory.h"
+#include "myprocess/calcbackupsize.h"
+#include "myprocess/mksquashfsprocess.h"
+#include "parsebackuplist.h"
+
+class CustomizeSystemBackupProxy : public Worker
+{
+    Q_OBJECT
+    DECLARE_DYNCREATE(CustomizeSystemBackupProxy)
+
+public:
+    // 系统备份的几种场景
+    enum CustomizeSystemBackupScene {
+         SYSTEM_BACKUP,  // 系统备份
+         TRY_SYSTEM_BACKUP,  // 测试系统备份，可用于计算备份传输数据大小
+         MKSQUASHFS,  // 生成img文件
+    };
+
+    explicit CustomizeSystemBackupProxy();
+    virtual ~CustomizeSystemBackupProxy();
+
+public:
+    // 环境检测
+    virtual bool checkEnvEx();
+
+    // 任务处理
+    virtual void doWorkEx();
+
+signals:
+
+private slots:
+    // 校验剩余空间是否满足备份
+    void checkFreeCapacity(qint64 itotalSize);
+
+    // mksqushfs
+    void doMksqushfs();
+
+    // 备份
+    void doBackup();
+
+    // 任务取消
+    virtual void cancelEx();
+
+    /**
+     * @brief 校验移动盘是否还在
+     * @return: bool,存在返回true；不存在返回false
+     * @author: zhaominyong
+     * @since: 2021/05/24
+     * @note:
+     *      add by zhaominyong at 2021/05/24 for bug:54377 【备份还原】备份数据到U盘的过程中拔出U盘，备份还原工具仍然一直显示正在备份数据
+     */
+    bool checkDestDirExists();
+
+private:
+    // 判断是否增量备份
+    bool isIncBackup();
+
+    // 计算备份所需空间大小
+    void calcSizeForBackup();
+
+    /**
+     * @brief 根据场景获取rsync命令参数
+     * @param scene，场景
+     * @return 组装好的rsync的参数信息
+     */
+    QStringList getRsyncArgs(CustomizeSystemBackupScene scene);
+
+    /**
+     * @brief 记录/backup/snapshots/backuplist.xml文件
+     * @return true-成功；false-失败
+     */
+    bool recordBackupPoint();
+
+    // 备份准备
+    bool doPrepare();
+
+    // 备份系统
+    bool backupSystem();
+
+    // 备份img文件
+    bool backupImg();
+
+    bool backup(const QStringList &args);
+
+    void do_kylin_security(const QString& dstDir);
+
+    // 失败则删除相应数据
+    void deleteFailedData();
+
+    // 计算备份空间大小的进程
+    CalcBackupSize *m_calc;
+    // 压缩进程
+    MkSquashFSProcess *m_mksquashfs;
+
+    // 是否完成
+    bool m_isFinished;
+    // 是否备份成功
+    bool m_bSuccess;
+    // 当前备份uuid
+    QString m_curUuid;
+    // 当前备份目标目录
+    QString m_destPath;
+    // 当前备份所需空间大小
+    qint64 m_size;
+    // 当前备份节点
+    ParseBackupList::BackupPoint m_backupPoint;
+    // 是否只是检测
+    bool m_isOnlyCheck;
+    // img文件存放路径
+    QString m_imgPath;
+    // 强制结束标志(stop后没反应的情况，系统处于睡眠状态)
+    bool m_isForce;
+};
+
 #endif // CUSTOMIZESYSTEMBACKUPPROXY_H
diff --git a/backup-daemon/parsebackuplist.h b/backup-daemon/parsebackuplist.h
index 37db3bc..1d4f9ee 100755
--- a/backup-daemon/parsebackuplist.h
+++ b/backup-daemon/parsebackuplist.h
@@ -25,7 +25,7 @@ public:
         QString m_backupName;
         // 备份时间
         QString m_time;
-        // 本地备份还是U盘备份: 0-本地备份；1-移动设备备份；2-异机备份（仅用于业务场景标记，不用于持久化记录）
+        // 本地备份还是U盘备份: 0-本地备份；1-移动设备备份；2-异机备份（仅用于业务场景标记，不用于持久化记录）；3-自定义路径备份
         int m_iPosition = -1;
         // 操作类型，如：系统备份, 系统还原
         int m_type = -1;
diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index 139b0cd..02fe69b 100755
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -1,6 +1,5 @@
 #include "udisksystembackupproxy.h"
 
-#include "systembackupproxy.h"
 #include <QStorageInfo>
 #include <QDateTime>
 #include <QDebug>
diff --git a/backup-daemon/workerfactory.cpp b/backup-daemon/workerfactory.cpp
index 9b5fe82..6f08a4b 100755
--- a/backup-daemon/workerfactory.cpp
+++ b/backup-daemon/workerfactory.cpp
@@ -54,6 +54,8 @@ Worker * WorkerFactory::createWorker(int type, int position)
     case BackupType::INC_BACKUP_SYSTEM:
         if (BackupPosition::UDISK == position) {
             className = "UDiskSystemBackupProxy";
+        } else if (BackupPosition::CUSTOMIZE == position) {
+            className = "CustomizeSystemBackupProxy";
         } else {
             className = "SystemBackupProxy";
         }
@@ -62,6 +64,8 @@ Worker * WorkerFactory::createWorker(int type, int position)
     case BackupType::RESTORE_SYSTEM_WITH_DATA:
         if (BackupPosition::UDISK == position) {
             className = "UDiskSystemRestoreProxy";
+        } else if (BackupPosition::CUSTOMIZE == position) {
+            className = "CustomizeSystemRestoreProxy";
         } else {
             className = "SystemRestoreProxy";
         }
@@ -70,6 +74,8 @@ Worker * WorkerFactory::createWorker(int type, int position)
     case BackupType::INC_BACKUP_DATA:
         if (BackupPosition::UDISK == position) {
             className = "UDiskDataBackupProxy";
+        } else if (BackupPosition::CUSTOMIZE == position) {
+            className = "CustomizeDataBackupProxy";
         } else {
             className = "DataBackupProxy";
         }
@@ -77,6 +83,8 @@ Worker * WorkerFactory::createWorker(int type, int position)
     case BackupType::RESTORE_DATA:
         if (BackupPosition::UDISK == position) {
             className = "UDiskDataRestoreProxy";
+        } else if (BackupPosition::CUSTOMIZE == position) {
+            className = "CustomizeDataRestoreProxy";
         } else {
             className = "DataRestoreProxy";
         }
@@ -87,6 +95,8 @@ Worker * WorkerFactory::createWorker(int type, int position)
     case BackupType::GHOST_IMAGE:
         if (BackupPosition::UDISK == position) {
             className = "UDiskGhostImageProxy";
+        } else if (BackupPosition::CUSTOMIZE == position) {
+            className = "CustomizeGhostImageProxy";
         } else {
             className = "GhostImageProxy";
         }
diff --git a/common/mydefine.h b/common/mydefine.h
index e821015..c19e9c5 100755
--- a/common/mydefine.h
+++ b/common/mydefine.h
@@ -90,7 +90,7 @@ enum BackupType {
 struct BackupWrapper {
     // 操作类型，如：系统备份, 系统还原
     int m_type = -1;
-    // 本地备份还是U盘备份: 0-本地备份；1-移动设备备份
+    // 本地备份还是U盘备份: 0-本地备份；1-移动设备备份;2-异机备份；3-自定义路径
     int m_iPosition = -1;
     // 备份名称，用于识别备份的，默认是时间
     QString m_comment;
@@ -163,7 +163,8 @@ enum BackupPosition
 {
     LOCAL, // 本地磁盘
     UDISK, // 移动设备
-    OTHER  // 移动设备中的其它机器的备份点
+    OTHER,  // 移动设备中的其它机器的备份点
+    CUSTOMIZE, // 自定义路径
 };
 
 /**
diff --git a/common/utils.cpp b/common/utils.cpp
index f55c51e..d64c9f9 100755
--- a/common/utils.cpp
+++ b/common/utils.cpp
@@ -457,6 +457,7 @@ bool Utils::generateExcludePathsFile()
     in << "/var/lib/kmre" << END_LINE;
     in << "/var/lib/udisks2" << END_LINE;
     in << "/var/log" << END_LINE;
+    in << "*/backup/snapshots" << END_LINE;
 
     // 系统安装后有的会将/data/home /data/root挂载到的/home /root上，实际文件是存放在/data/home /data/root下面，为了统一标准保留/home /root排除/data/home /data/root
     QStringList excludes;
@@ -511,6 +512,7 @@ QStringList Utils::getFromExcludePathsFile()
         list << "/var/lib/kmre";
         list << "/var/lib/udisks2";
         list << "/var/log";
+        list << "*/backup/snapshots";
 
         // 系统安装后有的会将/data/home /data/root挂载到的/home /root上，实际文件是存放在/data/home /data/root下面
         QStringList excludes;
diff --git a/kybackup/component/filefilterproxymodelforbackup.cpp b/kybackup/component/filefilterproxymodelforbackup.cpp
index e69de29..bfd4e40 100644
--- a/kybackup/component/filefilterproxymodelforbackup.cpp
+++ b/kybackup/component/filefilterproxymodelforbackup.cpp
@@ -0,0 +1,40 @@
+#include "filefilterproxymodelforbackup.h"
+#include <QFileSystemModel>
+#include "../../common/mydefine.h"
+
+FileFilterProxyModeForBackup::FileFilterProxyModeForBackup(QObject *parent) :
+    QSortFilterProxyModel(parent)
+{}
+
+FileFilterProxyModeForBackup::~FileFilterProxyModeForBackup()
+{}
+
+bool FileFilterProxyModeForBackup::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    QModelIndex index0 = sourceModel()->index(sourceRow, 0, sourceParent);
+    QFileSystemModel* fileModel = qobject_cast<QFileSystemModel*>(sourceModel());
+
+    if (fileModel != nullptr && fileModel->isDir(index0)) {
+        QString fileName = fileModel->fileName(index0);
+        // 防命令注入
+        // 1、形如：mkdir '`id&>id_bak_test.txt`'中的文件夹名称
+        if (fileName.contains(QRegularExpression(".*`.*`.*")))
+            return false;
+        // 2、形如：$()的文件夹名称
+        if (fileName.contains(QRegularExpression(".*\\$\\(.*\\).*")))
+            return false;
+        // 3、形如：${}的文件夹名称
+        if (fileName.contains(QRegularExpression(".*\\$\\{.*\\}.*")))
+            return false;
+        // 4、包含[;、&、|]等可以包含并执行系统命令或用于连续执行系统命令的符号
+        if (fileName.contains(QRegularExpression("[;&|]+")))
+            return false;
+
+        QString filePath = fileModel->filePath(index0);
+
+        return !(filePath.endsWith(BACKUP_SNAPSHOTS_PATH) || filePath == BACKUP_PATH);
+    } else {
+        return false;
+    }
+}
+
diff --git a/kybackup/component/filefilterproxymodelforbackup.h b/kybackup/component/filefilterproxymodelforbackup.h
index ba742b3..74c67d8 100644
--- a/kybackup/component/filefilterproxymodelforbackup.h
+++ b/kybackup/component/filefilterproxymodelforbackup.h
@@ -1,4 +1,17 @@
 #ifndef FILEFILTERPROXYMODELFORBACKUP_H
 #define FILEFILTERPROXYMODELFORBACKUP_H
 
+#include <QSortFilterProxyModel>
+
+class FileFilterProxyModeForBackup : public QSortFilterProxyModel
+{
+    Q_OBJECT
+public:
+    FileFilterProxyModeForBackup(QObject *parent = nullptr);
+    ~FileFilterProxyModeForBackup();
+
+protected:
+    virtual bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const;
+};
+
 #endif // FILEFILTERPROXYMODELFORBACKUP_H
diff --git a/kybackup/component/myfileselect.cpp b/kybackup/component/myfileselect.cpp
index aa7004f..70aefed 100755
--- a/kybackup/component/myfileselect.cpp
+++ b/kybackup/component/myfileselect.cpp
@@ -1,6 +1,7 @@
 #include "myfileselect.h"
 #include <QDialogButtonBox>
 #include <QLineEdit>
+#include "filefilterproxymodelforbackup.h"
 
 MyFileSelect::MyFileSelect(QWidget* parent) :
     QFileDialog(parent)
@@ -9,6 +10,9 @@ MyFileSelect::MyFileSelect(QWidget* parent) :
     this->setFileMode(QFileDialog::ExistingFiles);
     this->setFilter(QDir::System | QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot);
 
+    FileFilterProxyModeForBackup *proxy = new FileFilterProxyModeForBackup;
+    this->setProxyModel(proxy);
+
     QDialogButtonBox* button = this->findChild<QDialogButtonBox*>("buttonBox");
     disconnect(button, SIGNAL(accepted()), this, SLOT(accept()));
     connect(button, SIGNAL(accepted()), this, SLOT(goAccept()));
diff --git a/kybackup/kybackup.pro b/kybackup/kybackup.pro
index f040f01..babf1b4 100755
--- a/kybackup/kybackup.pro
+++ b/kybackup/kybackup.pro
@@ -41,6 +41,7 @@ HEADERS += \
     component/backuplistwidget.h \
     component/circlelabel.h \
     component/clicklabel.h \
+    component/filefilterproxymodelforbackup.h \
     component/hoverwidget.h \
     component/imageutil.h \
     component/linelabel.h \
@@ -88,6 +89,7 @@ SOURCES += \
     component/backuplistwidget.cpp \
     component/circlelabel.cpp \
     component/clicklabel.cpp \
+    component/filefilterproxymodelforbackup.cpp \
     component/hoverwidget.cpp \
     component/imageutil.cpp \
     component/linelabel.cpp \
diff --git a/kybackup/maindialog.cpp b/kybackup/maindialog.cpp
index 66aa2f7..c943c88 100755
--- a/kybackup/maindialog.cpp
+++ b/kybackup/maindialog.cpp
@@ -288,13 +288,12 @@ void MainDialog::mountBackupPartition()
         exit(1);
     } else if (int(MountResult::CANNOT_GET_BACKUPUUID) == reply.value()) {
         // 没有找到备份分区，只能备份到移动设备中
-        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Information"),
-                                              QObject::tr("Please check if the backup partition exists which can be created when you install the Operating System."),
-                                              QObject::tr("Ok"));
-
-        // GlobelBackupInfo::inst().setHasBackupPartition(false);
-        // 此时还未进入应用的事件循环中，故不能使用qApp->quit();
-        exit(1);
+//        MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Information"),
+//                                              QObject::tr("Please check if the backup partition exists which can be created when you install the Operating System."),
+//                                              QObject::tr("Ok"));
+//        // 此时还未进入应用的事件循环中，故不能使用qApp->quit();
+//        exit(1);
+        GlobelBackupInfo::inst().setHasBackupPartition(false);
     } else if (int(MountResult::MOUNTED) != reply.value()) {
         // 挂载备份分区失败
         MessageBoxUtils::QMESSAGE_BOX_CRITICAL(this, QObject::tr("Warning"),
diff --git a/kybackup/module/systembackup.cpp b/kybackup/module/systembackup.cpp
index 1ec9cc7..455aa44 100755
--- a/kybackup/module/systembackup.cpp
+++ b/kybackup/module/systembackup.cpp
@@ -5,10 +5,13 @@
 #include <QMovie>
 #include <QHBoxLayout>
 #include <QVBoxLayout>
+#include <QFileDialog>
+#include <QtGlobal>
 #include <unistd.h>
 
 #include "../component/clicklabel.h"
 #include "../component/circlelabel.h"
+#include "../component/filefilterproxymodelforbackup.h"
 #include "../component/myiconlabel.h"
 #include "../component/mylabel.h"
 #include "../component/mylineedit.h"
@@ -246,8 +249,49 @@ void SystemBackup::initSecondWidget()
             comboSelect->addItem(iconFolder, qsPreDevPath + disk.rootPath() + BACKUP_SNAPSHOTS_PATH);
         }
     });
+    connect(comboSelect, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [=]() {
+        this->m_prefixDestPath = "";
+    });
     m_udector->getStorageInfo();
+    QPushButton *buttonBrowse = new QPushButton;
+    buttonBrowse->setText(tr("Browse..."));
+    connect(buttonBrowse, &QPushButton::clicked, this, [=](){
+        // 是否自定义路径？自定义路径备份文件不受保护，可能导致备份文件丢失或损坏
+        if (!MessageBoxUtils::QMESSAGE_BOX_WARNING_CANCEL(this, QObject::tr("Information"),
+                                                          QObject::tr("Are you sure to continue customizing the path？\n"
+                                                          "The custom path backup file is not protected, which may cause the backup file to be lost or damaged"),
+                                                          QObject::tr("Ok"), QObject::tr("Cancel")))
+        {
+            return ;
+        }
+
+        QFileDialog fileDialog(this);
+        fileDialog.setWindowTitle(tr("Please select a path"));
+        fileDialog.setViewMode(QFileDialog::List);
+        fileDialog.setFileMode(QFileDialog::DirectoryOnly);
+        fileDialog.setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
+        QList<QUrl> siderUrls;
+        siderUrls << QUrl::fromLocalFile(Utils::getSysRootPath());
+        siderUrls << QUrl::fromLocalFile(Utils::getSysRootPath() + "/data");
+        fileDialog.setSidebarUrls(siderUrls);
+        FileFilterProxyModeForBackup *proxy = new FileFilterProxyModeForBackup;
+        fileDialog.setProxyModel(proxy);
+        if (fileDialog.exec() == QDialog::Accepted) {
+            QStringList selectFiles = fileDialog.selectedFiles();
+            if (!selectFiles.isEmpty()) {
+                comboSelect->setCurrentIndex(-1);
+                QString fileName = selectFiles.at(0);
+                this->m_prefixDestPath = fileName;
+
+                QLineEdit * edit = new QLineEdit;
+                comboSelect->setLineEdit(edit);
+                edit->setText(tr("customize path : ") + fileName + BACKUP_SNAPSHOTS_PATH);
+                edit->setReadOnly(true);
+            }
+        }
+    });
     hlayoutLine2->addWidget(comboSelect);
+    hlayoutLine2->addWidget(buttonBrowse);
     hlayoutLine2->addSpacing(40);
     vlayout->addLayout(hlayoutLine2);
     vlayout->addSpacing(30);
@@ -272,9 +316,14 @@ void SystemBackup::initSecondWidget()
     connect(nextStep, &MyPushButton::clicked, this, [=](bool checked) {
         // 备份路径选择索引
         int index = comboSelect->currentIndex();
-        // 第一个选项是本地系统备份
-        this->m_isLocal = GlobelBackupInfo::inst().hasBackupPartition() && (index == 0);
-        this->m_prefixDestPath = this->m_udiskPaths.at(index);
+        if (index >= 0) {
+            // 第一个选项是本地系统备份
+            this->m_isLocal = GlobelBackupInfo::inst().hasBackupPartition() && (index == 0);
+            this->m_prefixDestPath = this->m_udiskPaths.at(index);
+        } else {
+            // 自定义备份位置的场景
+            this->m_isLocal = true;
+        }
         this->on_next_clicked(checked);
         emit this->startCheckEnv();
     });
@@ -561,7 +610,7 @@ void SystemBackup::on_checkEnv_start()
     BackupWrapper backupWrapper;
     backupWrapper.m_backupName = m_backupName;
     backupWrapper.m_type = BackupType::BACKUP_SYSTEM;
-    backupWrapper.m_iPosition = m_isLocal ? BackupPosition::LOCAL : BackupPosition::UDISK;
+    backupWrapper.m_iPosition = m_isLocal ? (this->m_prefixDestPath.isEmpty() ? BackupPosition::LOCAL : BackupPosition::CUSTOMIZE) : BackupPosition::UDISK;
     QString backupPath = Utils::getSysRootPath();
     backupPath += "/";
     backupPath.replace("//", "/");
@@ -1062,7 +1111,7 @@ void SystemBackup::on_backup_start()
     BackupWrapper backupWrapper;
     backupWrapper.m_backupName = m_backupName;
     backupWrapper.m_type = BackupType::BACKUP_SYSTEM;
-    backupWrapper.m_iPosition = m_isLocal ? BackupPosition::LOCAL : BackupPosition::UDISK;
+    backupWrapper.m_iPosition = m_isLocal ? (this->m_prefixDestPath.isEmpty() ? BackupPosition::LOCAL : BackupPosition::CUSTOMIZE) : BackupPosition::UDISK;
     QString backupPath = Utils::getSysRootPath();
     backupPath += "/";
     backupPath.replace("//", "/");