diff --git a/services/param/adapter/param_persistadp.c b/services/param/adapter/param_persistadp.c
index ad26c31782f63e06e3332004f5f8bd31c199d058..7e869de365b01a1b88624b238c208939460f9143 100644
--- a/services/param/adapter/param_persistadp.c
+++ b/services/param/adapter/param_persistadp.c
@@ -108,6 +108,8 @@ static void BatchSavePersistParamEnd(PERSIST_SAVE_HANDLE handle)
 {
     int ret;
     FILE *fp = (FILE *)handle;
+    (void)fflush(fp);
+    (void)fsync(fileno(fp));
     (void)fclose(fp);
     if (InUpdaterMode() == 0) {
         unlink(PARAM_PERSIST_SAVE_PATH);