Abstract: In order to reduce the cost of active distribution network day-ahead optimization scheduling, a method of active distribution network day-ahead optimization scheduling considering equipment adjustment cost is proposed. Establish a daily optimal scheduling model with the objective function of minimizing the comprehensive operating cost and the constraints of Distflow branch power flow and equipment safety operation. A new linearization method is proposed to form a mixed integer Linear programming model for nonlinear items such as node voltage fluctuation constraints and energy storage life cost model in the form of Second-order cone programming (SOCP). Simulate and calculate in an improved IEEE-33 node system using the YALMIP/CPLEX tool. The experimental results show that the proposed method can effectively consider the cost factor of energy storage life loss, and the effect is good.