The paper proposes a distributed optimal operation method of active distribution network considering flexible adjustment of time-of-use electricity price, and establishes a ‘microgrid alliance-shared energy storage-active distribution network’based on the order of control information flow. The coordinated optimization architecture realizes the coordinated operation of multilateral entities through the convergence of time-of-use electricity price. By using the complementary characteristics of multi-energy load and demand response mechanism to stabilize the fluctuation of new energy, the dynamic allocation mechanism of arbitrage strategy for sharing the remaining capacity of energy storage is designed, and the global optimization model of active distribution network under the guidance of dynamic time-of-use price is established. Through cyclic iterative optimization until the balance of interests of the three parties is realized, while ensuring the independent decision-making of each subject, the utilization efficiency of energy storage and the overall operation economy of the system are significantly improved, and the effective consumption of new energy is promoted.