摘要：

民法典中债权受让人的地位保障规则涉及多个层面。受让人取得债权的时点是债权转让合同生效时，其同时取得了广义上的从权利，对担保权的取得无需其他公示，并依据受让人是否具有解除利益判断其是否取得解除权。受让人和让与人的关系中，受让人对让与人享有辅助请求权；让与人对受让人负有的瑕疵担保责任不包括承诺债务人的履行能力；让与人未经受让人同意作出的导致转让债权价值减损的行为，对受让人不发生效力，但存在合理的例外。在受让人和其他第三人的关系中，应根据功能性担保的统一观念，首先按照登记先后以及登记与扣押、受理破产案件的时间先后，确定债权利益的最终归属顺位，该顺位利益也应合理延伸到因债务人履行形成的收益上。

关键词: 债权转让, 债权受让人, 担保权, 优先顺位

Abstract:

In the civil code，the rules of protecting the status of the assignee of creditor's rights involve many aspects.In principle，when the contract of assignment of creditor's rights comes into effect，the assignee obtains the creditor's rights.The scope of acquired rights also includes the subordinate rights in a broad sense.The acquisition of the security right does not need other publicity.When judging whether the assignee has the right of rescission，it is necessary to consider whether the assignee has the interest of rescission.In the relationship between the assignee and the assignor，the assignee has the auxiliary claim right to the assignor；the liability for warranty of the assignor to the assignee does not include the commitment of the debtor's ability to perform；the assignor's behavior that causes the value of the creditor's rights to be lost or impaired without the consent of the assignee has no effect on the assignee，with reasonable exceptions.In the relationship between the assignee and other third parties，the ultimate order of the creditor's right interest should be determined according to the registration sequence and the time sequence of registration，distrain and acceptance of bankruptcy cases.The sequential interest should also be reasonably extended to the proceeds from the debtor's performing.

Key words: Assignment of Claims, Assignee, Security Right, Priority Sequence