Abstract: High penetration of photovoltaic access to distribution network will lead to node voltage violation. For the current research only from the view of single active or reactive power to achieve voltage control, an active-reactive coordinated optimization method is proposed. The coordinated optimization model consider demand response and PV inverter reactive power regulation capability, with total nodal voltage deviation minimum as the objective function is. In addition, a chaotic particle swarm optimization algorithm based on particle dimension entropy and greedy strategy is presented to solve the model. The validity and practicability of the method is verified in case study.