针对分级医疗体系的实施效果不佳的困境，提出社区医院投资物联网技术以形成物联网医疗体系，缓解三甲医院医疗资源紧张，提高门诊患者的就医体验。本文构建了一个尊重患者就医选择的、由三甲医院为领导者、社区医院为跟随者的三阶段动态斯坦伯格博弈模型。本文研究发现了物联网投资的分流机制机器阈值，以及三甲医院面对物联网投资的定价策略。研究表明：当社区医院进行了较高水平的物联网技术投资形成足够的服务能力后，三甲医院将向下调整服务定价，社区医院有更多门诊患者选择就诊，患者的就医体验将有效提高，如此将有效解决门诊患者“看病贵、看病难”的问题，实现分级医疗的目的。而如果社区医院的物联网投资水平不高时，这一愿望恐难实现。

Since its implementation in 2009， China's hierarchical medical system has faced the dilemma of structural resource imbalance： Grade 3A hospitals （China’s highest-ranked medical facilities）， accounting for only 7.6% of the total number of hospitals， bear nearly 50% of the patient visits， operating under prolonged high load； while the utilization rate of primary medical institutions （such as community hospitals） remains below 60%. Due to information asymmetry and a lack of trust in community hospitals， patients with minor illnesses flock to Grade 3A hospitals， exacerbating the issues of “difficult and expensive access to healthcare”. Internet of Things （IoT） technology offers a new pathway to optimize medical resource allocation and enhance the efficiency of hierarchical diagnosis and treatment. However， its investment decisions require systematic analysis of the interactive effects of patient behavior choices， hospital competitive strategies， and policy constraints.The core problem addressed in this paper is， within a two-level referral system consisting of Grade 3A hospitals and community hospitals， how can IoT investment by community hospitals alter patient choice of healthcare providers， alleviate congestion in Grade 3A hospitals， and simultaneously optimize the pricing strategy of Grade 3A hospitals to achieve the goals of hierarchical medical care.Achieves Hierarchical Care　IoT supports information sharing and a two-way referral system， optimizing resource matching.The IoT investment level of community hospitals is a key lever for the success of hierarchical medical care. When investment is high， it creates a virtuous cycle of "patient diversion → Grade 3A hospital price reduction → decrease in both cost and waiting". Conversely， the hierarchical system fails. The government needs to constrain Grade 3A hospital pricing via guided prices and incentivize IoT construction in community hospitals. Future research could explore cross-hospital cost-sharing mechanisms and empirical validation.