Active distribution network reconfiguration（DNR） and volt-var optimization（VVO） are usually considered as relatively two independent issues for study

which is lack of coordination consideration of them.In this paper

a mixed integer convex programming-based method for the coordination of DNR and VVO is proposed.The optimal solution is obtained by the use of convex optimal method so to solve the problem of coordination operation of grid reconfiguration of distribution network and reactive voltage optimization.Firstly

a coordinated model for DSR and VVO is set up on the basis of branch flow equations.Then

the constraints of power flow

equipment operation and network frame of distribution network are subject to convex transformation treatment

the original non-convex model is converted into a mixed integer convex programming model with convex feature and the the obtained can be solved by the existing convex optimization software.Finally

simulations are tested on the 33-bus distribution system.The comparison results of 5 operation scenarios have verified that the proposed mixed integer second order conic programming（MISOCP） and mixed integer linear programming（MILP） models are effectively applied to solve the coordinated problem of DNR and VVO and their solutions are the same within the engineering permissible error range.