Abstract: Against the backdrop of carbon neutrality and carbon peaking goals, the community-level integrated energy system(CIES) serves as a crucial pathway to improving energy efficiency and reducing carbon emissions, among other benefits. In existing research on the participation of CIES in energy market and spinning reserve market, the issue of market entry qualifications for spinning reserve market is often overlooked and the difficulty that small operators face in meeting the qualification requirements established by the spinning reserve market. A strategy that considers cooperative bidding among multiple CIES operators to meet the minimum power and duration requirements of the reserve market is proposed. First, a two-stage resource scheduling model is developed, taking into account the entry qualifications for the spinning reserve market. Then, an economic optimization model for multiple community-level integrated energy systems(MCIES) is established, aiming at the economic optimality of the MCIES, and embedding the aforementioned resource scheduling model, which includes various reserve resources. Finally, a case study is conducted to analyze the impact of considering resource combinations across different communities on system optimization. The results indicate that the proposed resource scheduling model, which includes spinning reserve market entry qualifications, can effectively reduce MCIES operating costs, demonstrating the effectiveness and feasibility of the proposed approach.