Park integrated energy system is an important direction of future energy system development. In this context, taking the commercial park as the object, a multi-energy management optimization decision model for commercial building operators is proposed. This paper constructs a master-slave game(Stackelberg game) decision-making model between commercial park operator(as master) and commercial building operators(as slaves) considering the electricity substitution and integrated demand response. By optimizing the management of internal energy consumption, building operators can use their responsive resources as bargaining chips to urge park operator to reduce energy prices in the game, so as to improve their own interests while promoting wind power consumption in the park. Finally, a case analysis is given to verify the effectiveness of the proposed model in promoting local wind power consumption and improving the benefits of both the master and the slaves.