In order to coordinate the interest relationship between multiple subjects, the bi-level optimization model taked the energy system operator as the main body, the load aggregation operator and the electric vehicle charging station as the main body. A multi-factor pricing mechanism was proposed to guide the lower level to participate in the upper optimization, so as to achieve mutual benefit and win-win results of multiple stakeholders. Secondly, based on the load dissatisfaction coefficient, the load demand response utility model was constructed to realize the trade-off between economy and satisfaction of the comprehensive load demand response. In addition, the stepped carbon trading mechanism and carbon capture equipment were introduced, and the coordinated operation strategy of new energy power supply to carbon capture equipment was considered to further improve the low-carbon operation capacity of the energy system. Finally, CPLEX was used to iteratively solve the bi-level optimization model. The results show that the proposed pricing mechanism reduces the upper carbon emission and the lower load interruption power, by 18.98% and 14.99% respectively, which verifies the effectiveness of the proposed model and method.