In the era of great health，innovation and application of big data are needed to achieve innovation in the management of health and medical institutions，including product innovation，service innovation，and management innovation. This innovation will help improve the national health level，enhance the overall performance of the country's health and hygiene，realize the fair supply of public health services and medical services，and promote the improvement of national health. One of the shortcomings in the current prevention and control of chronic diseases in China is lack of early screening，evaluation and discovery mechanisms，lack of personalized treatment and dynamic evaluation，lack of effective health promotion and disease management and other effective means. Health/disease risk assessment technology comprehensively use the mass data generated by physical examinations to achieve early screening and identify hidden health risks. This is an important means for stratifying healthy people and also provides an accurate basis for further health management. In the process of using big data to conduct health management，one issue that requires high attention is privacy protection. This is not only a common problem in the era of big data，but also a high degree of need for data collection，research，and utilization related to human health. This is a problem that we should value.