Abstract: To solve the problem of low accuracy of regulation and control in the operation of microgrid connected network,a microgrid step control method based on demand side management is proposed in this paper. Firstly,the microgrid ring structure form is built,and put forward the demand side management policy. In order to improve the benefits of renewable energy consumption,the matching degree of energy storage capacity allocation and the balance of supply and demand,the microgrid layer is controlled. Secondly,taking into account the time-sharing electricity price policy,the microgrid cluster is controlled with the optimal operation cost and environmental governance income. Finally,taking the dynamic power balance of the entire microgrid groups as the constraint,IEEE24 nodes are selected to verify the effectiveness of the proposed control method. The results show that the step control method proposed in this paper can effectively improve the accuracy and economy of microgrids control.