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Based on the analysis of distribution network service restoration with distributed generation(DGs), in this paper, it is pointed out that there are two deficiency in current research: First, when faults occur, only the power balance of the island is taken into consideration in spite of the calculation of power flow in the network after isolating the island and island itself and also the analysis of their stability and economic. Second, only fault which occurs inside the network is taken into consideration. In this paper, a integrated algorithm of distribution network service restoration considering distributed generation is proposed to solve the problem above. Based on the information of the type, capacity and priority of important load in an area, the strategy studies service restoration of the distribution network with distributed generation by using distributed generation islanding technique to decrease the area of load shedding, and ensure the reliability and economy for important consumers. At last, the algorithm is verified by 13-node benchmark, and the simulation results demonstrate the validity of the algorithm.