With the large-scale growth and integration of electric vehicles and renewable energy into the grid, it has caused an undeniable impact on the voltage quality of the distribution network, and voltage regulation resources are facing a tense situation. As electric vehicles are a flexible and controllable resource, the goal of voltage safety and stability can be achieved by adjusting their load size. This paper proposes an aggregated management voltage coordination and optimization control strategy for large-scale electric vehicle grid connection. To ensure the goal of regional voltage regulation, this method will also consider optimizing the calculation of capacitor bank regulation at the target node, and achieve voltage control through coordinated regulation of capacitors and charging loads.