In order to solve the problem that large-scale electric vehicles" disorderly access to the grid will bring a series of adverse effects to the safe and stable operation of the distribution network, a real-time response grouping scheduling strategy for orderly charging and discharging of electric vehicles under V2G mode is proposed. Starting from the day-to-day multi-time scale, this article fully considers the owner"s response willingness and response ability, and divides the electric vehicle cluster in detail. For each scheduling period, comprehensively consider the constraints of the grid, battery, and vehicle owners, and establish an orderly charging and discharging optimization model for electric vehicles. The model is divided into upper and lower layers to obtain electric vehicle charging and discharging scheduling plans: the upper layer takes the minimum variance load curve of the distribution network within the dispatch time interval as the goal, and obtains the total charging and discharging power of the cluster at the current time; the lower layer is for electric vehicle owners The lowest cost is the goal, and the charging and discharging plan for a single electric vehicle is obtained. Through simulation, the validity of the proposed model is verified.