Long-term oxygen inhalation is beneficial for patients with chronic obstructive pulmonary disease. For patients with fingertip oxygen less than or equal to 88% and arterial blood gas analysis oxygen less than 55mmHg, long-term home oxygen therapy can be used, and it is recommended that continuous low-flow oxygen inhalation can be controlled at 2-3 liters/min, and the effective time of inhalation of oxygen is about 10-15 hours per day. Oxygen inhalation can improve the lack of oxygen state, due to the lack of oxygen can lead to the function of the organs of the whole body abnormal, oxygen inhalation can make the chronic obstructive pulmonary patients of the organs of oxygen supply to be supplemented, at the same time, patients with chronic obstructive pulmonary patients should develop a correct lifestyle, to quit smoking, away from occupational dust exposure, prevention of respiratory infections, appropriate to participate in the sports that can be tolerated, you can also be injected with vaccines to prevent respiratory infections.