Health preserving plays an important role in China traditional medicine. The ancients believed that God was the master of life activities. Keeping quiet and psychologically balanced can keep innocent vitality, make the five internal organs peaceful, help prevent diseases, improve health and prolong life. On the contrary, it will lead to emotional internal injury, anger hurting the liver, happiness and sadness, thinking hurting the spleen, worrying about the lungs, fearing hurting the kidneys, and even inducing various physical and mental diseases. Regarding regulating qi and preserving health, the theory of TCM holds that human primordial qi has the functions of metaplasia, promoting blood circulation and consolidating blood, warming whole body tissues, resisting pathogenic factors and enhancing the functions of viscera. Many factors, such as unbalanced nutrition, improper work and rest, emotional imbalance, and invasion of pathogenic factors, can cause yuan-qi deficiency, depression, stagnation and inversion, and then cause pathological changes. The method of regulating qi and keeping in good health in TCM advocates a series of measures, such as careful living, adapting to the four seasons, abstaining from overwork, preventing excessive relaxation, regulating diet, harmonizing five flavors, regulating seven emotions, saving words and learning qi, and regulating breath, to regulate vitality, eliminate diseases and prolong life. In a word, the way of health preservation lies in the combination of activity and inactivity, reasonable diet, self-cultivation and mental health, so as to achieve the purpose of "aftercare"