Virtual power plant is of great significance to enhance the ability of grid to absorb distributed renewable power and improve the operation efficiency. Considering the low utilization efficiency of renewable power and energy storage equipment during the independent operation of virtual power plants with distributed photovoltaic power, this paper studies the cooperative operation of distribution networks with multiple virtual power plants. This paper first discusses the structure of distribution network with multiple virtual power plants, and then constructs a cooperative operation model of multiple virtual power plants based on the independent operation mode. Then, the original operation optimization problem is converted into mixed integer linear programming using scenario tree method and linearization method. Finally, the superiority and effectiveness of the proposed cooperative operation model and solution method are verified through experiment and analysis.