On the relationship between evidence, disease and illness Chinese medicine has always emphasized evidence-based treatment in the treatment of disease. It is the essence and core of TCM, the foundation of TCM and the lifeline of TCM. If we leave the discriminatory treatment, Chinese medicine will lose the power and source of development, lose vitality, and will go into decline. At the time of clinical evidence, on the basis of the diagnosis and treatment, it should be combined with the identification of the disease and the use of drugs, add or subtract with the disease to improve the effectiveness of treatment. Therefore, the interrelationship between evidence, disease and disease must be clearly identified. It is a reflection of the essence of a certain stage in the process of disease occurrence and evolution, and it is guided by certain relevant pulse evidence, under the guidance of Chinese medicine theory, to reveal the cause, mechanism, location, nature and potential of the disease to varying degrees, providing the basis for the theory of treatment; disease refers to the disease, which is a certain developmental law of the body under the action of etiological factors and the conditions of deficiency of evil, the evolution of the entire process of yin and yang imbalance, specifically expressed In a number of specific symptoms and the corresponding symptoms of each stage; symptoms that is, symptoms, is the patient’s conscious abnormal changes and the doctor through the four diagnostic means to obtain the abnormal characteristics of the form, is the external manifestation of disease and symptoms. There is an organic connection between the evidence, disease and symptoms. If we consider the TCM treatment system as a plane coordinate system, the disease is its horizontal coordinate, the symptoms are its vertical coordinate, and the symptoms are the coordinate points for its positioning. The process of Chinese medicine treatment is to summarize and summarize the symptoms obtained from the four clinics under the guidance of Chinese medicine theory, to identify the symptoms, and to legislate, prescribe and use medicine on the basis of the evidence. In clinical practice, there is no difference between ancient, famous, effective and experimental prescriptions, all of which are designed for the symptoms of TCM, not for the disease names of Western medicine, and each prescription corresponds to and fits a relatively stable symptom, while the symptom appears only at a specific stage of a disease. Therefore, comprehensive symptom collection and disease identification are all for the purpose of better identification. Accurate identification is not only the prerequisite for correct treatment and the key to clinical efficacy, but also the basis for judging the severity of the disease and its regression.