Active distribution network(ADN) has many advantages, which have high utilization of power low network loss and strong controllability,its optimal operation is a typical multi-objecitve optimization problem.This paper consider loadSshifting strategy of ESS in smoothing load curve and healthy economy simultaneously and establish a typical multi-objective ADN model, considering the model have some multi-dimensional and nonlinear characteristics,this paper propose an improved quantum particle swarm optimization (QPSD),which adopts the superposition state and probability expression characteristics of quantum theory to increase the population diversity and global optimization. Fnially, a typical active distribution network is taken as an example to verify the feasibility of the method.