This paper explores and in-depth studies of key technology and distribution network self-healing method. Based on the proposed re-distribution network fault ant colony algorithm based on the direction of coordinated method of forming self-healing strategies, the distribution network failure recovery model using improved ant colony algorithm for analysis, to reduce the loss of distribution network target, the Recovery problem solving constraint conditions into and through the distribution system of 33 nodes for fault healing examples analysis, numerical results show that the proposed algorithm has higher paper computational efficiency, and ultimately self-healing program can effectively ensure safe system operation after a fault and economically.