Abstract: Abstract:Access to distributed power distribution network distribution network reconfiguration will bring new challenges. for this problem，In this paper, network losses, node voltage amplitude, DG output with four goals as the network reconfiguration, as a basis for the establishment of a Pareto multi-objective mathematical model.Calculation of losses and voltage increments to reduce the number of load flow calculation using sensitivity method.in order to improve the search speed and the ability of global optimization, proposed the use of improved binary harmony search algorithm for solving distribution network reconfiguration. And a distribution network with 32 nodes as an example of the algorithm has been tested, and the simulation results are analyzed in detail to verify the effectiveness and speed of the proposed method, the examples show that the methods used with respect to the single objective optimization excellent show a good advantage.