First, it inherited and developed the idea of "preventing diseases" in Huangdi Neijing. Furthermore, based on this principle, the theory of "nourishing nature" was put forward, and it was repeatedly emphasized in the Preface to Nourishing a Thousand Women that "it is right to nourish nature and treat diseases that have not occurred" and "it is right for saints to treat diseases that have not occurred before, not after death".

Secondly, it laid the foundation of food nutrition in China. He said; "What lives is eating", "People who don't know what to eat can't survive". Sun Shi believes that diet is an important means to preserve health and prevent diseases. In Qian Jin Fang Yao, he listed 154 kinds of nutritious and dietetic foods, which were divided into four categories: Gu Mi, vegetables, fruits, birds and animals. Most of them are daily foods. Discuss their nature, taste and efficacy for people to choose as appropriate. In addition, he also put forward specific requirements for the diet of the elderly. Sun Simiao's academic thoughts on food nutrition and dietotherapy have great influence on later generations.

Third, emphasize the benefits of the house. "One thousand dollars as a prescription to make up for the benefits in the house" points out: "Anyone who feels the sun is booming must exercise restraint and not exhaust his heart and steal from himself", emphasizing that he should not indulge himself. In order to prevent some diseases from being induced by improper sexual life, it is pointed out in the book "Taboo of Nourishing Habits": "It is not bad for men and women to have a fever, and it is not suitable for women with blood in the second month and newborn babies to combine yin and yang." These views are all scientific contents of sexual health care.

Fourth, attach importance to maternal and child health care. In the book "A Thousand Daughters' Prescriptions", he broke the convention of medical books in past dynasties, taking three volumes of gynecology as the first case and two volumes of pediatrics as the second case. In addition to disease treatment, he also discussed maternal and child health care in detail.

Fifth, integrating Taoism, Buddhism, Confucianism and medicine, collecting, sorting out and popularizing health preserving techniques. Because Sun Simiao is familiar with the knowledge of Taoism and Buddhism, he has in-depth research on the theory and technology of health preservation. Therefore, in Qian Jin Fang Yao, there are not only Taoist health preserving theories such as "nourishing nature in the forest", "nourishing in the house" and "nourishing food", but also Buddhist health preserving techniques such as "Tianzhu Kingdom". It not only enriches the content of health care, but also spreads various traditional health care methods to all parts of the world. It is a valuable medical document in the history of health care development in China.