Seventy percent of lung cancer patients have advanced disease at the time of consultation, making it difficult to cure. However, some patients live for 3-4 years without using any medicine. There are some cancer patients who are fine when they don’t know they have cancer, but once they know they are suffering from “terminal disease”, they pass away in a short time. In fact, cancer is not likely to kill people so soon, but psychological factors become an important factor to kill the life of tumor patients. Studies have found that the prognosis of tumor patients is closely related to two major factors. One is the malignancy degree of cancer, and the other is the psychological quality of patients. Psychological health is crucial to strengthen autoimmunity and stop and slow down the progress of disease. A lot of facts show that cancer patients maintain an optimistic attitude towards life, establish confidence in overcoming the disease and firmly believe in their recovery ability, which is the primary prerequisite to overcome cancer. ”Survival with tumor” means that after treatment, the patient’s body and the tumor are in a relative balance, that is, the tumor cells are in a “quiescent” or “dormant” state for a certain period of time. In other words, tumor cells are in a “resting” or “dormant” state for a certain period of time. By enhancing the function of cerebral cortex and the tension of the whole nervous system, the positive psychological state can greatly improve the resistance and recovery vitality of the body, and the patient can generally be in good condition and even work and live independently, and the condition is stable and tends to improve within a certain period of time. Therefore, patients with advanced lung cancer, instead of being pessimistic, should actively cooperate with doctors’ treatment, apply various means such as drugs to control the tumor so that it will not increase in size, and at the same time establish confidence in overcoming the disease and greatly activate the immune system in the body, that is, let patients live with tumor, whose treatment aims not only to prolong patients’ survival period but also to improve their survival quality.