diff --git a/backend/app/service/snapshot_create.go b/backend/app/service/snapshot_create.go
index 4cdb098f2..0be39a23b 100644
--- a/backend/app/service/snapshot_create.go
+++ b/backend/app/service/snapshot_create.go
@@ -168,7 +168,7 @@ func snapCompress(snap snapHelper, rootDir string) {
 		_ = snapshotRepo.UpdateStatus(snap.Status.ID, map[string]interface{}{"compress": err.Error()})
 		return
 	}
-	size := common.LoadSizeUnit(float64(stat.Size()))
+	size := common.LoadSizeUnit2F(float64(stat.Size()))
 	global.LOG.Debugf("compress successful! size of file: %s", size)
 	snap.Status.Compress = constant.StatusDone
 	snap.Status.Size = size
diff --git a/backend/utils/common/common.go b/backend/utils/common/common.go
index a9f3edea2..e0ecd7957 100644
--- a/backend/utils/common/common.go
+++ b/backend/utils/common/common.go
@@ -147,6 +147,16 @@ func RemoveRepeatElement(a interface{}) (ret []interface{}) {
 }
 
 func LoadSizeUnit(value float64) string {
+	if value > 1048576 {
+		return fmt.Sprintf("%vM", value/1048576)
+	}
+	if value > 1024 {
+		return fmt.Sprintf("%vK", value/1024)
+	}
+	return fmt.Sprintf("%v", value)
+}
+
+func LoadSizeUnit2F(value float64) string {
 	if value > 1073741824 {
 		return fmt.Sprintf("%.2fG", value/1073741824)
 	}