diff --git a/backup-daemon/databackupproxy.cpp b/backup-daemon/databackupproxy.cpp
index 253274b..78bacd8 100755
--- a/backup-daemon/databackupproxy.cpp
+++ b/backup-daemon/databackupproxy.cpp
@@ -96,6 +96,9 @@ void DataBackupProxy::cancelEx()
  */
 void DataBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");
diff --git a/backup-daemon/systembackupproxy.cpp b/backup-daemon/systembackupproxy.cpp
index 7033bdd..ae9a9e4 100755
--- a/backup-daemon/systembackupproxy.cpp
+++ b/backup-daemon/systembackupproxy.cpp
@@ -96,6 +96,9 @@ void SystemBackupProxy::cancelEx()
  */
 void SystemBackupProxy::deleteFailedData()
 {
+    if (m_curUuid.isEmpty())
+        return;
+
     // 1、删除备份目录
     QString destPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_curUuid;
     destPath.replace("//", "/");
diff --git a/backup-daemon/udiskdatabackupproxy.cpp b/backup-daemon/udiskdatabackupproxy.cpp
index 271e683..15f7c11 100755
--- a/backup-daemon/udiskdatabackupproxy.cpp
+++ b/backup-daemon/udiskdatabackupproxy.cpp
@@ -102,6 +102,9 @@ void UDiskDataBackupProxy::cancelEx()
  */
 void UDiskDataBackupProxy::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("//", "/");
diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index 1afbb92..63f78fa 100755
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -119,6 +119,9 @@ void UDiskSystemBackupProxy::cancelEx()
  */
 void UDiskSystemBackupProxy::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("//", "/");