The survival time of emphysema varies from person to person and is related to the severity of the disease and whether it is actively treated, so it cannot be generalized. Emphysema is a chronic respiratory disease with clinical manifestations including cough, sputum and dyspnea. Emphysema is generally not completely curable. If the disease is mild, after timely treatment, regular follow-up, active smoking cessation and avoidance of long-term exposure to atmospheric pollution and harmful gases, it generally does not affect the life expectancy of patients. If the disease is more severe, the area of emphysema is larger and the lesions are more extensive, and there are repeated acute attacks of slow-onset lung, even leading to pulmonary heart disease, heart failure and severe respiratory failure, etc., which can affect the quality of life, the late life expectancy is 2-5 years. In addition, patients should pay attention to balanced nutrition, eat foods rich in high protein and vitamins, eat a light diet, and perform appropriate exercises to improve lung function.