From two aspects of the collection and calculation methods of reliability parameters and the selection of planning schemes,a formation and selection method of MV distribution network planning schemes considering reliability assessment is proposed in this paper,and the application of the guidance on the reliability evaluation of MV distribution network is furtherly enriched.This method includes parameter collection,reliability evaluation algorithm and formulation and comparison of schemes.Cooperating reliability and economy,the incremental net benefit model of investment is proposed based on "with&without comparison evaluation method",and the difference between the simplified model and the scheme comparison method based on life cycle cost minimization is analyzed under different power supply capacity and load demand.The investment cost&benefit is analyzed based on dynamic economic indicators,such as net present value and net present value rate,which can be used for multiple options.The case shows that the proposed method is feasible and effective.