diff --git a/myalioss/bucket.go b/myalioss/bucket.go
index 1b50de4..049dcf2 100644
--- a/myalioss/bucket.go
+++ b/myalioss/bucket.go
@@ -118,8 +118,3 @@ func (b *Bucket) PutObjectFromBytes(from []byte, to string) error {
 	reader := bytes.NewReader(from)
 	return b.Bucket.PutObject(to, reader)
 }
-
-// IsObjectExist 判断文件是否存在
-func (b *Bucket) IsObjectExist(objectKey string) (bool, error) {
-	return b.Bucket.IsObjectExist(objectKey)
-}