diff --git a/kernel/model/osssync.go b/kernel/model/osssync.go
index 3e5d7da71..b5e09d6a7 100644
--- a/kernel/model/osssync.go
+++ b/kernel/model/osssync.go
@@ -291,6 +291,10 @@ func ossDownload(isBackup bool, localDirPath, cloudDirPath string, bootOrExit bo
 			// 同步下载可能会报错，为了确保本地数据版本号不变所以不能更新配置文件，配置文件最后单独下载
 			continue
 		}
+		if "/"+pathJSON == fetch {
+			// 已经在前面验证解密的步骤中下载过了，目前位于 temp/sync/pathJSON
+			continue
+		}
 
 		waitGroup.Add(1)
 		p.Invoke(fetch)
diff --git a/kernel/model/sync.go b/kernel/model/sync.go
index 379f8c3c4..8c2057cf8 100644
--- a/kernel/model/sync.go
+++ b/kernel/model/sync.go
@@ -329,22 +329,6 @@ func SyncData(boot, exit, byHand bool) {
 		return
 	}
 
-	// 解密验证成功后将其移动到 sync/ 文件夹下
-	if err = os.Rename(tmpPathJSON, filepath.Join(localSyncDirPath, pathJSON)); nil != err {
-		util.PushClearProgress()
-		msg := fmt.Sprintf(Conf.Language(80), formatErrorMsg(err))
-		Conf.Sync.Stat = msg
-		util.PushErrMsg(msg, 7000)
-		if boot {
-			BootSyncSucc = 1
-		}
-		if exit {
-			ExitSyncSucc = 1
-		}
-		syncDownloadErrCount++
-		return
-	}
-
 	fetchedFilesCount, transferSize, downloadedFiles, err := ossDownload(false, localSyncDirPath, "sync/"+Conf.Sync.CloudName, boot || exit, removeList, upsertList)
 	if nil != err {
 		util.PushClearProgress()
@@ -569,7 +553,7 @@ func syncDir2WorkspaceData(boot bool) (upsertFiles, removeFiles []string, err er
 	}
 
 	modified := modifiedSyncList(unchanged)
-	metaPath := filepath.Join(Conf.Sync.GetSaveDir(), pathJSON)
+	metaPath := filepath.Join(util.TempDir, "sync", pathJSON) // 使用前面解密验证时下载的临时文件
 	indexPath := filepath.Join(Conf.Sync.GetSaveDir(), "index.json")
 	decryptedDataDir, upsertFiles, err := recoverSyncData(metaPath, indexPath, modified)
 	if nil != err {