When the existing system performs active distribution network resource cluster control, it is unable to perform effective voltage regulation due to the PWM wave, and there is a problem that the active distribution network response deviation is large. Therefore, an active distribution network resource cluster control system based on fuzzy theory is designed. The system hardware configuration includes cluster management module and voltage regulation module. The cluster management module is composed of cluster management master station, cluster management and control device, advanced application subsystem and SCADA system. The voltage regulation module is composed of voltage regulation device. On the basis of hardware design, the partition of distribution network, the selection of leading nodes and the division of cluster resources are realized through cluster division, and the multi-objective optimization of power grid resources is carried out through the multi-objective optimization method. According to the optimization results, the cluster control of active distribution network resources is realized through the cluster control strategy of active distribution network resources. The experimental results show that the response deviation of the designed system in the range of 3000W-6000W is small, and the operation efficiency is high, and the performance is improved.