The thesis deals with the basic theories about right of subrogation , such as the concept , legal characteristics , nature and function of the right , and puts an emphasis on a deeper probe into the central question of exercise of right of subrogation , including conditions of exercise of right , ways to exercise right , subjects and objects of the right , validity of exercise of right of subrogation and so on , in the hope of making a breakthrough in traditional theory on right of subrogation and contributing to building the modern system of right of subrogation accords with our national conditions 本文对代位权的有关基本理论，如代位权的概念、法律特征、性质及功能进行了探讨，并重点对代位权的行使这一核心问题，即代位权的行使条件、行使方式、代位权的主体和客体、代位权行使的效力等方面作了较深入的探讨，希冀对传统代位权理论有所突破并对构建符合我国国情的代位权制度有所贡献。
