Diseases are complex, not only the pathological process of the living body itself is complex, but also psychological, social and environmental factors can affect the pathological process; many complex diseases, such as cardiovascular diseases, cancer, AIDS, etc. are the result of the action of multi-level and multi-dimensional factors of the living body. Following the Human Genome Project, the main goal of experimental life sciences in the past 50 years was to find specific genes or proteins to explain life activities at the molecular level based on the behavior of individual genes or proteins. With the progress of life sciences and the advent of the post-genomic era, people gradually realized that the picture obtained in the past was too simple, and that life is actually a complex system composed of thousands of genes, proteins and other chemical molecules interacting with each other; for higher organisms, in addition to the complex behavior at the molecular level, there are also complex activities at different levels such as cells, tissues and organs; the phenomenon of life is such The phenomenon of life is the overall behavior of such a complex system. Based on the above understanding, in 2003, the National Institutes of Health (NIH) put forward another large-scale plan for biomedical development, namely, the Biomedical Roadmap, which advocates crossover, encourages risk-taking, promotes quantification and data sharing, and promotes macrobiological research. This “roadmap” plan advocates crossover, encourages risk-taking, promotes quantification and data sharing, and promotes research in macrobiology, which is considered to have the main goal of studying and understanding complex living systems, and therefore the prevention of disease is becoming increasingly complex and difficult. What is the role of Chinese medicine in disease prevention? 1, disease prevention and control need to focus on the system and the whole Chinese medicine “treating the disease” theory emphasizes that people as an organically linked whole, preventive health care must focus on its wholeness, and “systems biology” as a symbol, the development of modern medicine began to gradually from the reductionist With “systems biology”, the development of modern medicine has gradually moved from a reductionist approach to a systemic approach and a holistic approach. “Systems biology” is an emerging field of research that aims to answer the question of how biomolecules produce phenotypes through complex interactions, based on massive data and with a holistic and systematic approach. Systems biology is more emphasis on medical and life sciences in the research methods and concepts of the breakthrough, emphasizing the integration of computational and experimental research methods, and opened a new way of biomedical research. Characterized by holistic research, “systems biology” is considered the “core driver of medicine and biology in the 21st century”, which coincides with the concept of the holistic view of Chinese medicine, disease prevention must also pay more attention to the overall and systemic effects. 2, disease prevention to pursue the unity of the internal and external environment The concept of “treating the disease in the future” in Chinese medicine indicates the harmony of heaven and man and the unity of heaven and man, which requires health care to achieve harmony with the external environment. Since the 1950s, various chronic diseases have become the greatest threat to human health. It is clear that the occurrence and development of chronic diseases are the result of a combination of factors, in addition to biological factors, but also closely related to human habits, mental activities, behavior, environmental pollution, etc. Some people have proposed that mankind has entered the era of chronic diseases, lifestyle diseases or modern civilization diseases. At the end of the 20th century, the final conclusion of the global medical community’s great discussion was that the best medicine is not the medicine that cures diseases, but the medicine that makes people not sick. The medical model has also shifted from the biomedical model to a new medical model that combines physiology, psychology, society and environment. This modern medical model and the basic point of view of Chinese medicine to treat the disease, that is, on the basis of not excluding biological research, emphasizing the importance of the environment, psychological and social factors on health, disease, emphasizing the human psyche and physiology, mental and physical and internal and external environment of the body is a complete unity, so disease prevention should also pursue the unity and harmony of the internal and external environment of the body. 3, disease prevention must be throughout the life of Chinese medicine, “treating the disease” emphasizes the close combination of prevention and treatment, prevention before it happens, the idea of prevention should be throughout the whole process of the disease before it develops, before it becomes, before it spreads and before it returns. At the same time, many scientists in the field of life sciences is facing the challenge of how to understand and prevent complex diseases. At this stage, conventional drug therapy and surgery cannot cure complex diseases such as diabetes and tumors. Although scientists are also exploring gene therapy and cell therapy, they have not been successful so far. Therefore, the only way to control the development of diseases is to improve the patient’s quality of life by improving the patient’s well-being and adopting health monitoring throughout the life course, emphasizing health maintenance. At the same time, with the social and economic progress and the enhancement of group health awareness, people are more and more demanding to get health maintenance, health care satisfaction, and more and more pursuing health and longevity, people are no longer satisfied with getting treatment for diseases, but more pursuing prevention before illness, pursuing strong body and health, so preventive health care must also run through the whole process of life. 4, disease prevention began to emphasize individualized strategy Chinese medicine “treating the disease” theory that each individual is different and has its own characteristics, preventive health care needs to identify the evidence and treatment, the development of individualized programs and strategies. Modern medicine also believes that human diseases are the result of a complex dynamic system formed by the interaction of genetic (genomic information) and environmental factors out of normal operation. Apart from acquired diseases (trauma, infection, etc.), human diseases can be classified genetically as chromosomal, monogenic and polygenic diseases. Even in acquired diseases where environmental factors are the main cause, the resistance and repair ability of each individual to microorganisms or trauma varies depending on the genetic background. Moreover, due to the genetic differences, the action of drugs is different, and pharmacogenomics has been developed. At the same time, the new medical model requires a shift from disease-centered to patient-centered medical services. Sociality is an essential attribute of human beings, and changes in social and individual material living conditions, role disparities, changes in values and conflicts can cause physiological and psychological changes in the human body. Therefore, the development of medicine needs to shift to a comprehensive grasp of heterogeneity, individual differences and individualization, and preventive health care also needs to be based on the general law of individualized needs. Program. 5, disease prevention to maintain dynamic and active Chinese medicine “treating the disease” advocates preventive health care around the center of health, dynamic adjustment, active health. Since allopathic treatment cannot cure chronic and complex diseases, the rising cost of medical care and the heavy family and social burden it brings have contributed to the transformation of the modern medical service model. Doctors have evolved from the simple diagnosis and treatment of diseases to the management of people’s health and diseases, emphasizing the dynamic grasp of the overall physiological and pathological state of the organism in the process of disease to health, the implementation strategies of diagnosis, treatment and health care, as well as the prevention and treatment of chronic diseases, complex diseases and geriatric diseases, which are organically related to the daily diet, living, thinking and acting, and the integration of the treatment of diseases into natural life. With the development of social economy and medical technology, the concept of three-dimensional physical, mental and social health is becoming more and more accepted. The word “health” itself has been diversified. It is no longer as simple as “the body functions normally and is free of defects and diseases”, but has developed many new continuations such as mental health, health status, healthy way of living and healthy behavior. The purely antagonistic treatment of diseases is obviously unable to keep up with the pace of the times; while the dynamic and active prevention of chronic diseases according to the theory of TCM will greatly improve the patients’ living conditions and ultimately promote human health. In conclusion, the “holistic view” of “the unity of heaven and man” and the principle of “diagnosis and treatment” of “treating the untreated” in TCM, The concept of individualized preventive health care according to the person, the time and the place is precisely the same as the trend of medical life science development, and by giving full play to the rich theories and methods contained in the theory of treating the disease in Chinese medicine, it should be said that it provides the theoretical basis and technical support for improving the efficiency of disease prevention and control in China, and provides an effective way to build a modern disease prevention and health care system by combining Chinese and Western medicine in China, and also provides an effective way to It also brings an important opportunity to promote the joint development of TCM and Chinese and Western medicine in the new situation.