Demand response（DR）is an important part of demand side management（DSM）. Choosing the suitable users to participate in demand response is a key issue in the implementation of demand response. Firstly, the user satisfaction model is developed,in which the satisfaction of the user’s electricity consumption and the satisfaction of the electricity expenditure are both taken into account. Then, based on the characteristics of different load on the user side, a capacity model that users can participate in adjustment under different response levels is constructed. Thus, an integer programming model for automatic screening of users in demand response is proposed, which can be solved by using the branch and bound method. Finally, by using the case study, the usefulness and feasibility of the model is illustrated, which shows that the strategy is fair and effective.