The life expectancy of early stage lung cancer after surgery is usually more than five years, and it may not even affect the normal life expectancy. In the early stage of lung cancer with limitation, the cancer cells have not metastasized and spread to the lymphatic system and distant organs, so radical surgery can be taken to remove them, and most of the patients can be recovered after the surgery, and the five-year survival rate can reach more than 70%; some of the patients, if well taken care of in the later stage, will not have any impact on their life expectancy, and can achieve the same life expectancy as that of the normal people. The overall cure rate and survival rate of lung cancer in early stage are good, but there is still a certain possibility of recurrence in the later stage, so regular follow-up is needed, and once abnormalities are found, comprehensive treatments such as surgery, radiotherapy and chemotherapy should be taken in time.