TCM health preservation is a practical subject that studies and explains the basic theories and methods of the occurrence and development of human life, preventing diseases, strengthening physique and prolonging life. Its contents include the first part, the second part and the third part. The first part is the basic theory of TCM health preservation. It mainly includes introduction, brief history of development, basic theories and principles of health preservation, etc. The middle part is a common health preserving method. There are mainly spiritual health, environment and health, daily routine and health, sleep health, diet health, sexual intercourse and health, exercise health, bath health, entertainment health, health acupuncture and massage, drug health, etc. The next part is to judge the cause and support it. There are mainly personal health, physical health, part health, time health and regional health.

Health preservation is a health care activity that can maintain the body, reduce diseases, improve health and prolong life according to the law of life development. The word "keeping in good health" first appeared in the chapter of Zhuangzi. The so-called life means life, survival and growth; The so-called maintenance, that is, maintenance, nursed back to health, training, nourishing and nursing. Health preservation is a comprehensive activity to strengthen the body and prolong life by nourishing the spirit, adjusting diet, exercising the body, being cautious about sexual intercourse, and adapting to cold and temperature. Under the guidance of TCM theory, TCM health preservation is a practical science that explores and studies China's traditional theories and methods of caring for body and mind, strengthening physique, preventing diseases and prolonging life, and uses this theory and method to guide people's health care activities. Under the guidance of traditional Chinese medicine theory, the theory of health preservation absorbs the essence of various schools and puts forward a series of health preservation principles. Adding physical and mental nourishment, coordinating yin and yang, conforming to nature, taking care of diet, living cautiously, harmonizing viscera, smoothing meridians, abstinence, nourishing essence, benefiting qi and regulating pranayama, and so on, make health-keeping activities have rules to follow and laws to follow.