为了缓解居民“看病难、看病贵”的问题，我们构建了“社区–医院”的二级医疗服务系统概念模型，并建立了患者偏好的函数模型和转诊机制，采用AnyLogic软件对系统进行建模，并以上海市嘉定区为例，通过引入实际案例数据展示了该模型如何用于探讨不同医疗合作模式和医疗改革政策，结果显示，提升基层医疗服务质量以及医保报销比例能够有效提升医疗服务系统的整体效率。

In order to solve the problem of residents' difficulties in affording expensive medical treatment, we build a community-hospital concept model of a secondary medical service system, and establish a function model and a referral mechanism for patients' preferences. Taking Jiading District in Shanghai as an example, we make use of the AnyLogic system modeling software and demonstrate how this model can be used to study the effect of different medical cooperation modes and medical reform policies through the introduction of actual case data. Our results show that promoting the quality of primary medical care services and increasing the reimbursement ratio of medical insurance can effectively improve the efficiency of the whole medical service system.