diff --git a/qiniu/services/storage/bucket.py b/qiniu/services/storage/bucket.py
index 2d12860e..20148202 100644
--- a/qiniu/services/storage/bucket.py
+++ b/qiniu/services/storage/bucket.py
@@ -302,17 +302,15 @@ def delete_after_days(self, bucket, key, days):
         resource = entry(bucket, key)
         return self.__rs_do('deleteAfterDays', resource, days)
 
-    def mkbucketv2(self, bucket_name, region):
+    def mkbucketv3(self, bucket_name, region):
         """
-        创建存储空间
-        https://developer.qiniu.com/kodo/api/1382/mkbucketv2
+        创建存储空间，全局唯一，其他账号有同名空间就无法创建
 
         Args:
             bucket_name: 存储空间名
             region: 存储区域
         """
-        bucket_name = urlsafe_base64_encode(bucket_name)
-        return self.__rs_do('mkbucketv2', bucket_name, 'region', region)
+        return self.__rs_do('mkbucketv3', bucket_name, 'region', region)
 
     def list_bucket(self, region):
         """