Abstract: Based on the construction of the mathematical model and constraint conditions of the distribution network, this paper proposed an automatic generation basic loop matrix algorithm to encode the distribution network with new energy access, thereby avoiding the generation of infeasible solutions. The novel self-adaption chaos harmony search algorithm was used to solve the distribution network reconfiguration model, this method introduced the chaotic sequence to optimize the initial population at initializing the harmony memory, and improved the determination method to considering probability and trimming probability of the harmony bank, thus both probabilities are adaptive with particle information changes. The simulation results of 33-node system indicate that the proposed method can keep the voltage relatively stable with new energy access, and has better feasibility and optimization. It also verifies the effectiveness of the proposed reconfiguration model.