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In the operation of the distribution network, some network lines may be overloaded. In order to solve the problem, this paper proposes a distribution network reconfiguration model considering load type and network overload rate. First, a two-stage optimization model that takes the established load type into account and the purpose of this model is that transferring important loads into the line with a lower heavy load rate according to the load level. Then considering that the system topology will change with the load type, a new distribution network topology analysis algorithm is given in this paper. Finally, in order to improve the convergence performance, this paper choose two-stage optimization model solved by genetic-gray-wolf algorithm.