diff --git a/backup-daemon/systembackupproxy.cpp b/backup-daemon/systembackupproxy.cpp
index 7f30e33..cec3764 100755
--- a/backup-daemon/systembackupproxy.cpp
+++ b/backup-daemon/systembackupproxy.cpp
@@ -424,6 +424,7 @@ bool SystemBackupProxy::backupSystem()
     connect(m_p, &RsyncPathToDirProcess::finished, this,  [&](bool result) {
         if (result) {
             m_backupPoint.m_state = BACKUP_PARSE_STATE_SUCCESS_STRTING;
+            m_backupPoint.m_size = Utils::StringBySize(Utils::getDirOrFileSize(m_destPath));
             QString xmlPath = Utils::getSysRootPath() + BACKUP_XML_PATH;
             xmlPath.replace("//", "/");
             ParseBackupList parse(xmlPath);
@@ -432,6 +433,7 @@ bool SystemBackupProxy::backupSystem()
             Utils::writeBackupLog(m_backupPoint.m_time + ","
                                   + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ","
                                   + m_backupWrapper.m_note + "," + m_backupPoint.m_size);
+            Utils::update_backup_unique_settings(m_curUuid, m_backupPoint.m_backupName);
             m_bSuccess = true;
         }
         emit this->workResult(result);
diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index f21595f..947ffcd 100644
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -432,6 +432,7 @@ bool UDiskSystemBackupProxy::backup(const QStringList &args)
     connect(m_p, &RsyncPathToDirProcess::finished, this,  [&](bool result) {
         if (result) {
             m_backupPoint.m_state = BACKUP_PARSE_STATE_SUCCESS_STRTING;
+            m_backupPoint.m_size = Utils::StringBySize(Utils::getDirOrFileSize(m_destPath));
             QString xmlPath = m_backupWrapper.m_prefixDestPath + BACKUP_XML_PATH;
             xmlPath.replace("//", "/");
             ParseBackupList parse(xmlPath);
@@ -440,6 +441,8 @@ bool UDiskSystemBackupProxy::backup(const QStringList &args)
             Utils::writeBackupLog(m_backupPoint.m_time + ","
                                   + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ","
                                   + m_backupWrapper.m_note + "," + m_backupPoint.m_size);
+
+            Utils::update_backup_unique_settings(m_curUuid, m_backupPoint.m_backupName);
             m_bSuccess = true;
         }
         emit this->workResult(result);
diff --git a/common/mydefine.h b/common/mydefine.h
index 282385d..959f70d 100755
--- a/common/mydefine.h
+++ b/common/mydefine.h
@@ -17,6 +17,7 @@
 #define BACKUP_IMGBACKUP_PATH "/backup/imgbackup"
 #define IMGBACKUP_PATH "/imgbackup"
 #define UDISK_MKSQUASHFS_IMG_NAME "dst.img"
+#define UDISK_UNIQUE_SETTINGS "/backup/udisk_unique_file"
 
 #define DATA_PATH "/data"
 
diff --git a/common/utils.cpp b/common/utils.cpp
index d528f1b..9e3b1b7 100755
--- a/common/utils.cpp
+++ b/common/utils.cpp
@@ -17,6 +17,8 @@
 #include <functional>
 #include <QRegularExpression>
 #include <QProcess>
+#include <QSettings>
+#include <QTextCodec>
 
 #include "mylittleparse.h"
 #include "mydefine.h"
@@ -1005,3 +1007,37 @@ QHash<QString, QString> Utils::getLeftSizeOfPartitions()
     }
     return hash;
 }
+
+/**
+ * @brief 获取文件夹或文件的大小
+ * @param path 路径
+ * @return 大小
+ */
+qint64 Utils::getDirOrFileSize(const QString &path)
+{
+    char cmd[1024] = { 0 };
+    sprintf(cmd, "du -sb '%s' 2>/dev/null | awk '{print $1}'", path.toLocal8Bit().data()); //s:total k:1024 bytes b:1 byte
+
+    QString qsSize;
+    Utils::executeCMD(cmd, qsSize);
+    qsSize.replace("\n", "");
+    qsSize = qsSize.trimmed();
+    return qsSize.toLongLong();
+}
+
+/**
+ * @brief 记录下备份点uuid及其名称
+ * @param uuid
+ * @param backupName
+ */
+void Utils::update_backup_unique_settings(const QString &uuid, const QString &backupName)
+{
+    // 由于历史原因（原来只校验U盘备份的唯一性）,文件名暂不改变
+    QString backupUniqueSetting = Utils::getSysRootPath() + UDISK_UNIQUE_SETTINGS;
+    backupUniqueSetting.replace("//", "/");
+    QSettings udisk_unique_settings(backupUniqueSetting, QSettings::IniFormat);
+    udisk_unique_settings.setIniCodec(QTextCodec::codecForName("utf-8"));
+    udisk_unique_settings.beginGroup(backupName);
+    udisk_unique_settings.setValue("uuid", uuid);
+    udisk_unique_settings.endGroup();
+}
diff --git a/common/utils.h b/common/utils.h
index 9700850..7453d96 100755
--- a/common/utils.h
+++ b/common/utils.h
@@ -254,6 +254,20 @@ public:
      */
     static QHash<QString, QString> getLeftSizeOfPartitions();
 
+    /**
+     * @brief 获取文件夹或文件的大小
+     * @param path 路径
+     * @return 大小
+     */
+    static qint64 getDirOrFileSize(const QString &path);
+
+    /**
+     * @brief 记录下备份点uuid及其名称
+     * @param uuid
+     * @param backupName
+     */
+    static void update_backup_unique_settings(const QString &uuid, const QString &backupName);
+
 private:
     // 系统根目录，默认"/"
     static QString m_sysRootPath;