Abstract: To deal with the voltage over-limit problem of active distribution network caused by large-scale distributed photovoltaic (PV) access and reduce the time complexity of the control strategy, a dynamic cluster voltage control method considering power reserve and global importance of each node (GIN) in active distribution network was proposed. First, by considering the power reserve of each bus in the system, the voltage sensitivity-power reserve (VS-PR) comprehensive、electrical distance measure of the clustering algorithm is defined. Furthermore, the GIN algorithm is used to improve the affinity propagation (AP) clustering algorithm to realize network cluster division and dominant bus selection. Then, the active distribution network cluster voltage control model is established, and the model is solved by dynamic particle swarm optimization (D-PSO). Finally, the correctness and effectiveness of the proposed dynamic cluster division and voltage control method are verified by establishing a comparative analysis of IEEE 33-bus simulation examples based on the MATLAB 2021b platform.