Mental health remains a critical concern in China, particularly for patients with severe psychiatric disorders in rural areas. This study aimed to analyze the health status of Chinese patients with severe psychiatric disorders using the CART algorithm. Mental health is a critical facet of overall well-being, yet understanding and addressing the complexities of severe psychiatric disorders in rural China presents unique challenges. This comprehensive study employs advanced analytical techniques to explore and illuminate multifaceted aspects of mental health, with a specific focus on patients with severe psychiatric disorders, healthcare professionals, and rural residents in China. This study's novelty is in its creative utilization of the CART algorithm to assess the well-being of Chinese individuals grappling with severe psychiatric conditions. This cutting-edge data analysis method opens up a potential path for enhancing mental health strategies and optimizing resource allocation. In essence, this study offers a holistic examination of mental health in rural China, encompassing various dimensions, from predictive elements to the challenges faced by healthcare professionals. Its findings aim to inform the development of effective mental health strategies and resource allocation, enhancing the overall well-being of individuals grappling with severe psychiatric disorders in this region. The government and relevant authorities are recommended to ensure their physical and mental health. The lack of mental health information in rural China also negatively impacts patients' behavior in seeking and using medical services. Thus, measures to promote different forms of mental health education are proposed. In conclusion, the treatment of patients with severe mental illness is crucial to the physical and mental health of millions of people.