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With the increasing of uncertainty factors, the adjustable margin of power grid is gradually compressed. The energy storage device is an elastic resource, and it can be used to participate into the demand-side management aiming to increasing adjustable margin of power system through shaving peak load and filling valley load. Therefore, this paper researches on a demand response-based business mode and operation strategy of user-side storage device. First, a period division operation model based on the continuous load level is proposed in this paper. Second, time of use optimization model is built for obtaining optimal electricity prices of peak–flat–valley​ periods. Third, a commercial mode based on the peak valley arbitrage strategy is presented, and the energy storage system operation model is established in this paper. Finally, Case study is carried out using four typical load series to prove the efficiency of the proposed theory.