diff --git a/backup-daemon/systembackupproxy.cpp b/backup-daemon/systembackupproxy.cpp
index 61954f5..1daf0f0 100755
--- a/backup-daemon/systembackupproxy.cpp
+++ b/backup-daemon/systembackupproxy.cpp
@@ -297,14 +297,14 @@ QStringList SystemBackupProxy::getRsyncArgs(SystemBackupScene scene)
     // 系统更新备份不再备份用户数据目录
     if (AUTO_BACKUP_UUID == m_curUuid) {
         if (Utils::isHuawei990()) {
-            args << "/data";
+            args << "--exclude=/data";
         } else {
-            args << "/data/usershare";
+            args << "--exclude=/data/usershare";
         }
-        args << "/home";
-        args << "/data/home";
-        args << "/root";
-        args << "/data/root";
+        args << "--exclude=/home";
+        args << "--exclude=/data/home";
+        args << "--exclude=/root";
+        args << "--exclude=/data/root";
     }
 
     return args;