Abstract: For problems of difficulty in obtaining global optimal solution and low efficiency when heuristic method and intelligent optimization method were used to solve problem of distribution network reconfiguration, and requirements of rapidity and stability of mine-used distribution network reconfiguration, an improved fireworks algorithm was proposed to solve mine-used distribution network reconfiguration. Taking the minimum distribution network loss as objective function, explosion operator and termination strategy are improved by introducing self-adaptive coefficient, so as to reduce iterations and improve search efficiency. Combing with the optimal fireworks fine-tuning strategy, a large number of identical sparks can be avoid during the optimal fireworks explosion, which effectively improves sparks diversity. The experimental results show that the improved fireworks algorithm has higher stability and repeatability, faster search speed and good global search ability, and network loss is obviously reduced by use of the algorithm to solve problem of distribution network reconfiguration.