With the development of society and the improvement of living standards, people’s understanding of health is gradually deepening with the development of medicine. At present, “disease medicine” is gradually changing to “health medicine”, and the object of medical attention will also be gradually expanded from “the already sick” to “the not yet sick”. The strategy for diseases is changing from “seeking medical treatment” to “prevention-oriented”, and the entry point of medical intervention is gradually moving forward. The World Health Organization (WHO) has recently published a predictive survey, which shows that the total proportion of sub-healthy people in the world has reached 75%. Therefore, we should pay attention to subhealth and actively prevent and treat it. The theory of “treating the untreated” in Chinese medicine is internationally known as the most advanced and most advanced preventive medicine idea, and “treating the untreated” is the trend of medical development. The theory of “treating the disease before it happens” is the trend of medical development, and the theory of “treating the disease before it happens” will be enriched and developed in the practice of solving subhealth problems. The theory of “treating the untreated” in Chinese medicine originated from the ancient Chinese philosophical thought, and the concept of “treating the untreated” was introduced in the Yellow Emperor’s Classic of Internal Medicine. Su Wen? The Four Qi and Apoplectic Gods” clearly put forward: “The sage does not treat the disease to cure the disease, does not treat the chaos to cure the chaos, this is also called. If the disease has become and then the medicine, chaos has become and then the cure, like thirst and wear well, bucket and cast cone, is not also late! “Treating the untreated disease” refers to the treatment of the disease at the light and superficial stage or the disease at the budding state of aura. The theory of “treating the untreated” in the Huangdi Neijing has had a profound influence on later generations. The “Seventy-seven Difficulties”, based on the “Yellow Emperor’s Classic of Internal Medicine”, put forward the idea of treating the internal organs of the undiseased, that is, “The so-called cure for the undiseased is to see the disease of the liver, then know that the liver should be transmitted to the spleen, so first strengthen its spleen qi, so that it will not be subject to the evil of the liver, so it is said to cure the undiseased.” Today, the theory of “treating the untreated” in the Nei Jing has been continuously explored and supplemented, and the practical experience has become richer and richer, which has played a positive role in guiding the prevention and treatment of diseases. The theory of “treating the untreated” in Nei Jing has four general meanings: preventing diseases before they occur, treating the sprouting of diseases, waiting for the decline and stabbing, and preventing changes in existing diseases. In addition to the Yellow Emperor’s Classic of Internal Medicine, which is a masterpiece of basic Chinese medicine theory, the Treatise on Typhoid also contains many discussions on the idea of treating the untreated diseases, especially the section of the Golden Killing. On the whole, the treatment of untreated diseases includes three major aspects, namely, prevention of changes in untreated diseases, prevention of transmission of existing diseases and prevention of recurrence after recovering from diseases. Whether the state of undisease is a disease or not is the key to our understanding of the treatment of undisease. In the Shuowen Jiezi: “Sickness is also disease; sickness is also disease plus.” Here “illness” refers to minor illnesses, while “disease” refers to critical illnesses. The Dictionary of Chinese Characters and the Dictionary of Chinese Character Origins are based on the interpretation of Shuowen Jiezi. It can be seen that the term “unwell” includes all the states before serious illness, the healthy state and the non-healthy state. The healthy state means that the patient has no suffering, and there is no abnormality in checking the color and pressing the pulse, which is called unwellness. The non-healthy state means that the patient is suffering from something, but it is very mild, and there are abnormalities in the color and pulse, which is called illness, not disease, so it is also called unwellness, and requires medication to prevent aggravation. In the book “Jin Kui Yao”, it is said that the patient is suffering from a disease, but it is very mild. The first article in the “organs, meridians, successive diseases and pulse evidence” lists “the upper work to cure the untreated disease” and warns that people should pay attention to “sexual intercourse should not make exhausted, eating its cold, hot, bitter, sour, sweet and pungent” in general. Only when the five organs are free and clear, people will be at peace” and “if the body is not decayed, there will be no reason for disease to enter its couples” indicate that disease can be prevented if the righteous energy is nurtured internally and wind and evil are rejected externally. To prevent the spread of disease means to treat and prevent the disease at the early stage to prevent further aggravation of the disease and damage to more internal organs. In the book of “The Essentials of Jin Kui? The first of the organs and meridians sequential disease pulse evidence, “asked the day: the upper work to treat the undiseased, what? The teacher said: the treatment of the untreated disease, see the liver disease, know that the liver transmits the spleen, when the first real spleen. The four seasons of the spleen is not subject to evil, that is, do not supplement the. Chinese workers do not know the transmission, see the liver disease, do not understand the actual spleen, but also treat the liver.” This article clearly puts forward the term of treating the untreated disease. Here the treatment of the untreated disease refers to the treatment of the internal organs of the untreated disease, that is, the disease has been prevented from transmission. The application of the theory of treating the undiseased in medical treatment is not only reflected in the prevention and treatment, but also in the compounding of Chinese medicine. A good prescription must contain the most basic theories of Chinese medicine, including the theory of treating the untreated disease. The prevention of recurrence after the disease has been cured simply means to provide proper treatment after the disease has been cured to prevent recurrence, which is Zhang Zhongjing’s supplement and play on the idea of treating the untreated disease in the Nei Jing. For example, in the book “Jin Kui Yao” (The Essentials of the Golden Horoscope) In the “Evidence of successive diseases of internal organs and meridians”, it is said that “each of the five viscera is healed, and each of the five viscera is healed with its own evil, and each is healed with its own dislike.” Emphasis is placed on the appropriate medicine and care methods to prevent recurrence of disease by adapting to their likes and avoiding their dislikes. After the chapter on the six meridians of typhoid fever, there is a chapter on the “Identification of Yin and Yang after the disease of labor and recovery”, which points out that after the new recovery of typhoid fever, if one is not careful in living and working or eating, the change of labor and food recovery will easily occur, thus reminding people that after the initial recovery of the disease, they should be careful in living and working, and not to eat and work, and do a good job in the aftercare and conditioning of the disease, in order to attack the healing effect and prevent the recurrence of the disease, so as to receive full success. For example, in the book “The Essential Guide to the Golden Horoscope? In “The Twelfth Book on the Combined Treatment of Phlegm and Cough Diseases”, it is said that after taking the ten jujube soup, “after getting down quickly, feed yourself with the cereal porridge”, which emphasizes that in order to prevent the depletion of vital energy, one should stop taking the medicine immediately after the disease, and pay attention to the diet and life regimen after the medicine to prepare for a rainy day.