Gong's syndrome differentiation and treatment emphasizes pulse diagnosis, and in the method of saying pulse at the beginning of the disease, he thinks that the pulse condition is clear and the pathology is self-evident. In many books, it begins with pulse science. When discussing every disease, we must first understand the pulse condition and distinguish the pulse condition, so as to know the severity of the disease. The theory of blood gas elaborated the physiology, pathology, interrelation and treatment of qi and blood in detail. It is pointed out that the essence of human body is blood gas, and all diseases begin with blood gas. The treatment takes "one person's whole body, regulating qi first, and regulating blood second" as the leading idea, focusing on regulating qi, and blood with pneumatic, emphasizing that while regulating qi and blood, we should not forget to help stomach qi, which is the foundation of treatment. In the treatment of blood syndrome, especially do not make greasy drugs damage stomach qi. Gong thinks that qi is yang and blood is yin, so left blood is right and night blood is weather. This view has important guiding significance for clinical syndrome differentiation. "Spleen and stomach theory" emphasizes that the spleen and stomach are the masters of the internal organs and the source of blood and gas biochemistry, and says that "tonifying the kidney is not tonifying the spleen." Spleen and stomach damage is the root of internal injury. Summarize the causes of spleen and stomach damage into three points: diet fatigue, wanton indulgence, double diet, concise and to the point. Because of the close relationship between diet and spleen and stomach, whether diet is adjusted directly affects the health and decline of spleen and stomach. Therefore, Gong pays special attention to diet and health, and does not make eating disorders endanger life. Its general program is "keep warm when eating and drinking water in all seasons". Whether it is to prevent and treat diseases or to recuperate after illness, it is important to recuperate the spleen and stomach, which fully embodies Gong's thought of attaching importance to the spleen and stomach. The theory of aging explains that the mechanism of human aging is the deficiency of kidney yin and kidney yang, while indulgence in taste and lust will accelerate aging and lead to premature death. Gong proposed that "those who are good at keeping in good health should keep in good health; Those who are not good at keeping in good health should keep in good health ",and oppose simply using tonic to keep in good health and eating too much, thinking that this only accelerates the decline of healthy qi." Instead, we should pay attention to the importance of health preservation and advocate abstinence, pure heart and nourishing essence. "Longevity" specifically gives the ideas and propositions of health preservation, including diet, exercise, rest, psychology and so on, which embodies Gong's health preservation thoughts. Gong Tingxian's thought of disease prevention is included in the theory of health preservation. In addition to parenting, there is independence. It is pointed out that the source of all diseases is deficiency, and deficiency has four causes. First, improper diet damages the spleen and stomach; One is overwork, and the vitality dissipates; One is to think too much and damage your own efforts; One is excessive sexual desire, which consumes kidney water. He also said that although smart people will inevitably make one or two mistakes, they used the agent of Wang Dao Heping to adjust and take Li Kan Jiji Pill and Baohe Taihe Pill in the morning and evening. It can avoid lifelong pain and prolong life. The idea of preventing disease is embodied in the syndrome differentiation and treatment of various disciplines, such as preventing stroke, and pointing out that the precursor of stroke is numbness of the big and middle fingers or muscle peristalsis. After premonitory symptoms appear, timely medication can not only avoid the attack of stroke, but also enhance healthy qi and prevent other diseases. In addition, Gong is an original physician. He named "five diarrhea" as "kidney diarrhea" for the first time in Neijing, and attributed the cause of five diarrhea to kidney deficiency. Gynecology initiated Jiawei Siwu Decoction, which expanded the treatment scope of Siwu Decoction. It can not only treat exogenous diseases caused by physical weakness, but also treat internal injuries, diet and other miscellaneous diseases. It can not only cure the disadvantages of various orifices, but also cure the disharmony of limbs; It can not only treat various diseases caused by menstruation and pregnancy, but also flexibly adjust the prescription with the change of qi in four seasons. He wrote the first pediatric monograph named Massage, which emphasized the role of examination in the diagnosis of children's diseases, and paid attention to the influence of breastfeeding mothers' diet and emotional changes on children. In order to record the earliest use of arsenic to treat syphilis in surgery, different treatments were carried out according to different stages and symptoms of the disease. Clearly pointed out that syphilis is contagious. The Gong family was familiar with the medicinal properties, so they compiled a song and handed it down for praise and memory. That is, the song of medicinal properties contains 400 flavors, and now everyone is familiar with it. Most of the prescriptions in "Rejuvenation of All Diseases" and "Shou Shi Bao Yuan" are original. Many of them have been widely used in clinical departments, such as Wuji Baifeng Pill, Qingshangjuantong Decoction, Gaozhen Wuyou Powder and so on. Gong is also good at using predecessors' prescriptions, such as Buzhong Yiqi Decoction, which is widely used in internal medicine, obstetrics and gynecology, ent, surgery and other miscellaneous diseases, greatly broadening the application scope of prescriptions.