Successful lung replacement means that after a successful lung transplant, it is impossible to count exactly how long each person can live, but only according to the survival rate of 1 year, 5 years, 10 years, a report of the International Society for Heart and Lung Transplantation in 2019 pointed out that the median survival of all adult lung transplant recipients in 2010-2017 was 6.7 years, that is to say the average life expectancy was 6.7 years. Most experts have found, based on clinical follow-up, that the 1-year survival rate after lung transplantation is more than 90%, the 5-year survival rate can reach 50%, and the 10-year postoperative survival rate decreases to about 20%, with double-lung transplants surviving a little longer than single-lung transplants. Survival time after lung transplantation is highly correlated with the patient’s underlying physical condition, cardiopulmonary function, the quality of the donor lungs, and post-operative treatment. Post-operative patients are required to take oral immunosuppressants, and are therefore immunocompromised and protected from external infections, and the presence of a minor infection can be fatal. Even if the lung transplantation goes well, it is important to maintain a strong immune system and good physical condition after the operation, live in an excellent environment, and reduce rejection reactions and infections in order to maximize survival time.