Public Health Based on blockchain as the underlying technology, chain, combined with big data, artificial intelligence, supply chain, Internet of things and other technology applications, through the exploration and research of digital identity, medical payment, health management, value medicine, clinical medicine, charity, insurance and other fields, helps enterprises, hospitals and customers coordinate their relationships, establish a trust mechanism, and provide consulting servicesTechnical support such as supervision and guidance, product development, etc., to solve the problems of medical services, accelerate the sustainable and healthy development of medical ecology, help the flow and safety of medical data, improve the value of business and scientific research, and industry efficiency.