Chronic obstructive pulmonary disease (COPD) is chronic obstructive pulmonary disease. Patients with COPD at the age of 45 have the potential to live to the age of 65 if they undergo active and effective treatment. Usually after developing chronic obstructive pulmonary disease, if the lung function is lightly damaged, the survival period will not be greatly affected by removing the causes, such as actively quitting smoking, and carrying out active treatment. 45-year-old patients who have developed chronic obstructive pulmonary disease, if they have developed chronic cough, coughing, dyspnea, chest tightness and other symptoms, it means that the lung function has been seriously damaged. If active treatment is not carried out, lung function will gradually decline and even further develop to pulmonary heart disease and respiratory failure, then the survival period may only be 2-5 years, i.e. the patient will not live to 65 years old. After the diagnosis of chronic obstructive pulmonary disease, home oxygen therapy, medication, and pulmonary rehabilitation should be followed to slow down the development of the disease and improve the patient’s symptoms such as dyspnea and chest tightness. In addition to actively cooperating with doctors, it is more important for patients to take reasonable daily care of themselves for this chronic disease, including quitting smoking and drinking, adjusting the diet structure, and properly performing aerobic exercises such as tai chi, walking and cycling to delay the decrease of lung function, which can achieve a certain effect of prolonging the survival period.