Through long-term clinical observation and research, it is obvious that the treatment of tumors in TCM focuses more on the activation and maintenance of patients’ own anti-cancer ability, rather than on allopathic treatment. What is the patient’s own healing ability? After birth, human beings develop a very systematic and effective self-protection mechanism. The immune system is one of the most important components, which is responsible for the defense against external microbial invasion and the removal of transformed cells (which have a tendency to transform into cancer cells) in the body, and is characterized by a constant decline with age. As age increases, the central immune organ, thymus gland, starts to atrophy at the age of 40 for men and 35 for women, and the function of the body enters a critical point of transition from strength to weakness. If proper maintenance is not carried out during this period, it will often lay the foundation for various diseases in the future. The relationship between the immune function status and tumor incidence tumor epidemiological data show that the peak incidence of major solid tumors such as lung cancer, stomach cancer, intestinal cancer, esophageal cancer, breast cancer and ovarian cancer is after the age of 40, while the incidence rate before that is significantly lower. This incidence characteristic is closely related to the immune function status of human body. During youth, the immune function can effectively identify antigens and clear them in time, so a small amount of precancerous lesions in the body can be cleared in time. After 40 years old, the immune clearance ability gradually decreases, while the aging various cells gradually increase and complicate the occurrence of chronic inflammation, both of which form a vicious circle and promote the high incidence of malignant tumors. Respecting the benefits of patients’ own recovery ability to pay full attention to tap the immune function of human body is a hot spot of current research and has great potential. The current national vigorous promotion of vaccination to protect against various infectious diseases is an exemplary practice of fully utilizing and tapping into the functions of the human immune system. Currently, vaccines for cervical cancer and hepatitis B vaccine are very successful practices to prevent the occurrence of cervical cancer and liver cancer. Various biological immunotherapies for tumors have also become a hot spot for clinical research, all reflecting the expectation of tapping into the potential of the immune system. Director Tian said that TCM focuses more on maintaining the patient’s own healing ability, especially the immune system function. Normal immune system function can actively and effectively clear tumor cells and perform clearance of tumors. Thus, post-operative patients can prevent their metastasis, and even advanced patients with tumors can achieve the effect of survival with tumors. And with the continuous progress of modern medicine, most patients are directly treated by western medical means such as radiotherapy and chemotherapy, often neglecting the maintenance of human immune function, which is an important clinical issue that needs attention in treatment, because normal immune function is the key factor for long-term stability. The understanding of the function of the body’s immune system at the key node of strengthening the patient’s own recovery ability is still superficial and requires greater investment and effort in research. From the current limited understanding, the younger the age the easier it is to form immune memory, which contributes to the effectiveness of prevention, and a uniform national immunization program for infants and children is already routine clinical practice. Active intervention at the critical point when the organism’s function changes from bloom to decline around age 40 is also key to preventing various diseases in the second half of life. There are many means of TCM to improve recovery, and the most applied is still oral Chinese medicine, which in turn has various dosage forms, oral being the most common for everyone, in addition to capsules, injections, etc. In addition, various external treatments such as acupuncture, poultices and Guo Lin Qigong can also be used to improve patients’ own immunity and treat tumors. At present, every winter poultice is also used to improve one’s own anti-cancer ability through precise identification of physique and comprehensive tonic, and “Longhua poultice” has become a popular consumption in winter in Shanghai. In addition, proper exercise, reasonable diet, maintaining a happy mood, relaxing oneself, healthy work and rest, and combining work and rest are also indispensable. Therefore, adjusting one’s living condition to a reasonable interval can improve one’s immunity and enhance one’s recovery ability. It must be emphasized that the value of cancer prevention is far greater than the most advanced treatment. The use of various methods to maintain the body’s healing capacity in a normal state in order to bring out its ability to resist disease treatment and should be the goal pursued by doctors. We must not be confused by the new technology and new drugs and ignore our own anti-cancer ability, or even continuously weaken the immune function of the body in the process of treatment, which often results in “winning the local battle”, but “losing the whole war”.