Abstract: Aiming at the situation of wind and solar resources and heating demand in northwest China in winter,considering the combined heat and power function of photothermal power station and the development of shared energy storage,an optimal operation method of electric-thermal integrated energy system based on leader-follower game theory is proposed. Firstly,the composition of electric-thermal integrated energy system is introduced. Secondly,the models of combined heat and power type photothermal power station,shared energy storage and users are established. Next,build a leader-follower game model between energy operators and user aggregators. finally,according to the winter measured data of a photothermal new energy base in Northwest China,the example simulation is carried out,and the system operation is optimized by the combination of Gurobi academic version and heuristic algorithm.The results show that the model can not only realize the benefits of both energy operators and user aggregators,but also provide a new solution to the heating demand under the background of carbon neutrality.