In order to solve the complexity of the power system planning in the low carbon electricity situation, SE-DEA (Super-Efficiency Data Envelopment Analysis) algorithm is firstly applied to the field of program evaluation sequence voltage and described the evaluation process of voltage level sequence. The network size, the total power loss, integrated power supply reliability, cost in investment and integrated area are introduced to improve the distribution network planning of evaluation index system based on the traditional comprehensive evaluation index system and apply this model program by the corresponding calculated, Through comparative analysis the optimal sequence of voltage options, finally verify that the model is reasonable and effective.