The treatment objectives of chronic obstructive pulmonary disease include the following: 1) to relieve the patient’s symptoms, such as improving the patient’s cough, coughing and dyspnea; 2) to slow down the disease process, as long as the patient quits smoking in a timely manner and uses the therapeutic drugs for chronic obstructive pulmonary disease in a timely manner, the development process of chronic obstructive pulmonary disease can be slowed down and the patient’s prognosis can be improved; 3) to improve the patient’s exercise tolerance and quality of life, which can be achieved through continuous home oxygen therapy and long-term use of The improvement of exercise tolerance and quality of life can be achieved by continuous home oxygen therapy and long-term use of bronchodilator drugs. Home oxygen therapy is an important factor in improving quality of life, and it is advocated that patients with chronic obstructive pulmonary disease should have daily home oxygen therapy, and continuous low-flow oxygenation is recommended.