摘要： 就债权二重让与中的权利归属，我国《合同法》第80条未作出规定。我国学理和司法实务中存在三种观点。第一种观点采“让与在先，权利在先”，其以债权让与合同的先后顺序来决定债权归属，即受让在先的受让人取得债权；第二种观点采“通知在先，权利在先”，其以债权让与通知的先后顺序来决定债权归属，即让与通知在先的受让人取得债权；第三种观点采“登记在先，权利在先”，其以债权让与登记的先后顺序来决定债权归属，即让与登记在先的受让人取得债权。相比较而言，“让与在先，权利在先”的权利归属标准更为合理，符合我国债权让与的规范模式和法理逻辑，我国未来民法典分则在设置债权二重让与条款时应予以明确规定。

关键词: 债权二重让与, 让与合意, 让与通知, 让与登记, 权利归属

Abstract: With respect to the final ownership of creditor's rights in double assignment, the provisions of article 80 of China's contract law is not clear to define it. There are three kinds of viewpoints in Chinese academic and judicial practice. The first takes it for granted that the sequence of contracts of assignment of creditor's rights determines the final ownership of creditor's rights. As a result, the prior assignee acquires the creditor's rights. The second considers that the sequence of notice of assignment determines the final ownership of creditor's rights. On account of this, the prior-notified assignee acquires the creditor's rights. The third thinks that the sequence of registration of assignment determines the final ownership of creditor's rights, therefore, the prior-registered assignee acquires the creditor's rights. In comparison, the first viewpoint is more reasonable than the other two viewpoints, and it conforms to the normative pattern and legal logic of assignment of creditor's rights so that it should be stipulated in China's future civil code.

Key words: Double Assignment of Creditor's Rights, Consensus of Assignment, Notice of Assignment, Registration of Assignment, Ownership of Rights