At present, the efficacy of lung cancer is not particularly satisfactory, and the five-year survival rate of lung cancer patients is about 15%-17% on average. In China, if lung cancer is detected early: the five-year survival rate can reach 70% for stage Ia patients and 50% for stage Ib lung cancer patients; the five-year survival rate for stage II lung cancer patients is about 30%-50%; the five-year survival rate for stage IIIa lung cancer patients is about 20%-40%, and the five-year survival rate for stage IIIb lung cancer patients is about 10%; the five-year survival rate for stage IV lung cancer patients The five-year survival rate for stage IV lung cancer patients is only 2%-5%, and most patients have a survival period of less than five years.