In view of the problems of excessive load rate of trunk lines and low voltage qualification rate in the traditional active distribution network scheduling method, an active distribution network optimization scheduling strategy of multi-source cooperation is proposed. Through the analysis of multi-source cooperation of active distribution network, the optimization objective function of active distribution network is determined, and the scheduling analysis is carried out according to the objective. The experimental results show that the improved scheduling strategy has some advantages, such as low load rate and high voltage qualification rate.