diff --git a/br/pkg/task/backup_ebs.go b/br/pkg/task/backup_ebs.go
index db4166faa2..d81c498c9f 100644
--- a/br/pkg/task/backup_ebs.go
+++ b/br/pkg/task/backup_ebs.go
@@ -208,9 +208,9 @@ func RunBackupEBS(c context.Context, g glue.Glue, cfg *BackupConfig) error {
 
 	// Step.2 starts call ebs snapshot api to back up volume data.
 	// NOTE: we should start snapshot in specify order.
-
-	progress := g.StartProgress(ctx, "backup", int64(storeCount)*100, !cfg.LogProgress)
-	go progressFileWriterRoutine(ctx, progress, int64(storeCount)*100, cfg.ProgressFile)
+	volumeCount := storeCount * backupInfo.GetTiKVVolumeCount()
+	progress := g.StartProgress(ctx, "backup", int64(volumeCount)*100, !cfg.LogProgress)
+	go progressFileWriterRoutine(ctx, progress, int64(volumeCount)*100, cfg.ProgressFile)
 
 	ec2Session, err := aws.NewEC2Session(cfg.CloudAPIConcurrency, cfg.S3.Region)
 	if err != nil {