Abstract: Compressed air energy storage (CAES) has the characteristics of multi-energy co-supply, thus it has broad application prospects in distributed integrated energy systems. In order to strengthen the multi-energy complementary synergy between CAES and integrated energy systems(IES), an architecture and an operation method of a hybrid CAES system coupling solar thermal and biomass are proposed. Firstly, the basic dispatching structure of IES with CAES is constructed. The IES heating capacity can be improved by introducing biogas. On this basis, minimizing the operating cost of the system is taken as the goal, and the carbon trading mechanism and demand response are taken into account, so that an optimization operation model of IES with CAES is proposed. Finally, an example analysis is carried out with the data of Qinghai villages and towns, and the validity and superiority of the design model are verified. The results show that the total operation cost of IES decreases by 12.4%. the introduction of carbon trading mechanism can control carbon emissions to decrease by 11.3%, and the peak-valley differences of cold, heat and electric load after demand response adjustment can decrease by 7.9%, 10.9% and 2.3%, respectively.