A combined optimization model is developed to get the best maintenance schedule and service restoration strategy via interaction and repeated iteration of the repair order and load restoring path.The non-dominant sorting genetic algorithm （NSGA-Ⅱ）is applied to solve the model，and the basic circuit matrix is introduced to modify the infeasible solutions which form loops in the process of distribution system reconfiguration.Numerical examples have proved that the reliability of distribution system differs under different maintenance schedules and service restoration strategies，showing that the model is correct and effective. This work is supported by National Natural Science Foundation of China（No.51107037）.