The invention relates to a transregional power generation rights trade-carbon trade coupling model construction method and belongs to the technical field of low carbon electric power of an electric power system. A transregional power generation rights trade-carbon trade coupling model comprises n machine set side models, each machine set side model consists of an object function and a constraint condition, and the constraint condition of each machine set side model comprises a system side model. In solving processes, first the system side model is subjected to solving operation, transacted electricity quantities among all machine sets in power generation rights trade can be obtained, then the machine set side model is subjected to solving operation, an optimal choice of a quoted price and a quoted quantity of each machine set can be obtained, and the whole model reaches a Nash equilibrium point when a current quoted price and a current quoted quantity of each machine set no longer change. The transregional power generation rights trade-carbon trade coupling model construction method can provide a new transaction mechanism and new technology guidance for transregional power delivery, large scope optimal configuration of electric power resources can be facilitated, energy saving and emission reduction can be promoted, and low carbon transition can be facilitated.