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Under the goal of the national dual carbon strategy, favorable policies related to national and local energy storage appear frequently, and the era of large-scale energy storage comes. Based on the analysis of relevant national energy storage policies, this paper points out that under the single business model of energy storage, its energy storage resources will lead to a large number of idle waste and low economic benefits, and then leads to the necessity of shared energy storage business model, Compared with the traditional single energy storage business model, shared energy storage has wider sources of income and higher return on investment; This paper expounds the characteristics of the multi-agent shared energy storage business model participated by the third party, points out the interest relationship among its subjects, and then analyzes the typical application scenarios and business model of shared energy storage combined with the case of Shandong shared energy storage; Finally, it combs the application technology of shared energy storage, analyzes the bilateral and unilateral transaction interest relationship of shared energy storage, puts forward the transaction mode of standardizing its single and bilateral cost sharing, and then studies the transaction architecture of shared energy storage system for multi-agent users in distribution network.