It is impossible to determine how long an 85-year-old man with emphysema can live because advanced age is also a disease causative factor leading to emphysema. If the patient’s own health is relatively good and there are no other complications such as slow-onset lung, pulmonary heart disease, or respiratory failure, the patient’s survival rate is generally not affected by emphysema. However, if the patient has chronic bronchitis and emphysema for many years, there is continuous airflow limitation leading to complications such as slow-onset lung and pulmonary heart disease, and the patient is hospitalized every year, this will have a certain impact on the patient’s life expectancy. The average survival rate of patients of advanced age and with serious complications is about 3-5 years, and the actual situation of the patient should be taken into consideration.