With the large number of the new energy and new load access to distribution network, traditional distribution network static reconfiguration based on time section will not apply to new type distribution network. Put forward a reliability optimization method which can suitable new type distribution network include micro grid-electric vehicle unit (M-V-U). Firstly, set up micro grid structure model which containing electric vehicle charging infrastructure and analyze the operating strategy. Select system average interruption frequency index, energy not supply and active network power loss as optimization indicators, and build the satisfaction evaluation function unified each index’s dimensional. Set up the distribution network reliability optimization model contain M-V-U, and solve the model in four kinds of typical scenarios, the simulation results verify the effectiveness and correctness of the proposed method.