1999年通过的《中国华人民共和国合同法》首次将债权人的代位权制度纳入调整范围,为规范债权人代位权制度的正确行使,《中华人民共和国合同法》若干问题的解释(一)又对债权人代位权的相关问题做出了规定。本文结合司法实践,运用比较等研究方法对债权人代位权的客体的局限性及其扩张进行了讨论,认为其客体范围需要扩张,应包括所有权及返还原物请求权、债的从权利、诉讼上的权利等权利。 The “Contract Law of the People’s Republic of China” passed in 1999 first introduced the system of subrogation of creditors into the scope of adjustment. In order to regulate the correct exercise of the subrogation right system of creditors, the interpretation of the “Contract Law of the People’s Republic of China” (1) Subrogation issues related to the provisions made. This article discusses the limitation and expansion of the obligee’s subrogation subject with the judicial practice and the use of comparative research methods. It considers that the scope of its object needs to be expanded. It should include the ownership and return of the original claim, the right of debt, the litigation Rights and other rights.