A Stackelberg game model is proposed to study TOUbased trading modes in multiV2M system. According to DG’s power output and load distribution, multiV2M is classified and Stackelberg game model is established. Stackelberg game’s equilibrium with sellers and purchasers is strictly proved. The 24 hours price for the system is calculated. Taking 5 V2Ms system as a an example, the Nash equilibrium explains the system’s working process. The results on the traditional pricing model and Stackelberg game model are compared, and demonstrate the effectiveness of the proposed game model. The proposed model as well as the results have good adaptiveness, which can provide a theoretical basis for the development and management measures of multiV2M system.