Distribution network reconfiguration is one of the most basic and effective methods for distribution system loss reduction, and the dynamic reconfiguration is closer to engineering application. Firstly, the paper expounds the dynamic reconfiguration models and constraints of distribution network. Secondly, it focuses on the dynamic reconstruction algorithm of distribution network, summarizes the advantages and disadvantages of various algorithms, and concludes that hybrid algorithm can be used as the research direction of distribution network reconstruction; Then the methods of dividing the dynamic reconstruction period of the distribution network are summarized. The reconstruction period is divided according to the load characteristics and the characteristics of electricity price. Finally, the shortcomings of the documents of the current distribution network dynamic reconstruction are pointed out and the future is forecasted.