Proceeding from the actual conditions of distribution networks in China， a multi-fault rush repair optimization model for the power system is developed and a genetic-topology algorithm is put forward for the radiating configuration characteristic of the distribution network. With this approach， optimization is achieved through the genetic algorithm and the topology analytic algorithm is used to determine the outage area， the equipments waiting to be repaired and the characteristic of the lost load for an overall evaluation of their adaptability. This paper also proposes an intelligent mixed-cross strategy in the genetic process to prevent the occurrence of numerous infeasible solutions. A case study verifies the effectiveness and robustness of the algorithm proposed.