The treatment of COPD includes, acute exacerbation, such as low-flow oxygen, anti-infection, bronchodilator, glucocorticoid, etc.; stabilization, such as detachment from the harmful environment, inhalation of bronchodilator, glucocorticoid, long-term home oxygen therapy. 1. Acute exacerbation: first of all, low-flow oxygen should be inhaled, at the same time, anti-infective treatment should be carried out to remove the causative factors, such as cefuroxime, cefixime, etc.; nebulized inhalation of bronchodilators, such as salbutamol; in serious cases, glucocorticosteroids should be used orally or intravenously, such as methylprednisolone, aminoglutethimide; in case of phlegm, bromhexine, aminobromine and other sputum removing treatments can be used. 2. Stabilization period: Get rid of the harmful environment, such as occupational or environmental dust, irritating gases, etc. Smoking patients should quit smoking as soon as possible. Regular follow-up, regular review of lung function, adhere to the inhalation of drugs on time, according to the lung function and the degree of the disease to choose the appropriate inhalation drugs. For example, single branch expander such as salbutamol inhaler; double branch expander such as tiotropium bromide odatrol inhalation aerosol; inhalation hormone + branch expander, such as budesonide formoterol inhalation aerosol; inhalation hormone + double branch expander, such as budesonide formoterol inhalation aerosol. Long-term home oxygen therapy improves patients’ quality of life and survival. Therefore, patients with COPD should seek timely consultation and early treatment, and should not blindly use medication on their own, so as not to delay the condition and affect the prognosis.