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In order to solve the problem of low hierarchical scheduling capability of the current energy system scheduling optimization model, a two-layer and two-stage scheduling optimization model of distributed capacity system under active distribution network was constructed under the premise of controlling the operating cost of distributed energy system. The hierarchical scheduling function of the scheduling model was optimized, and the scheduling constraints of the energy system were set. The imperial competition optimization algorithm was used to solve the energy system scheduling optimization model to obtain the best scheduling scheme. An example analysis link was constructed, and the IEEE-33 bus distribution network test system was introduced to complete the analysis process. The test results of the example show that this model can improve the energy utilization rate and ensure the economy of the energy system in both the day-ahead stage and the day-ahead stage. It can be seen that the model can effectively improve the consumption capacity of distributed energy and maximize the economic benefits of active distribution network. [ABSTRACT FROM AUTHOR]