Under the carbon peaking and carbon neutrality goals, electric vehicles have attracted wide attention due to their advantages of low carbon and low pollution. In recent years, under the guidance of national policy, the development of electric vehicle grows very quickly, but the disorder of large-scale electric vehicle charging will produce adverse effect for grid security and stability,and reasonable scheduling of electric vehicle charging and discharging behavior involved in power grid peak shaving, can not only reduce the impact on power grid, but also produce significant benefits. Firstly, the potential and economy of electric vehicles participating in power grid peak shaving are analyzed. Then, the transaction mode, market transaction strategy, adjustable capacity,charge and discharge control strategy of EV participation in peak shaving assistance service market are analyzed. And focuses on the latest research results, possible research directions are proposed for existing problems in the research combined with new technologies. Finally, problems of large-scale electric vehicles involved in peak shaving are put forward.