1. Stable treatment Non-pharmacological treatment can be used: smoking cessation, exercise or pulmonary rehabilitation training, influenza vaccination and pneumonia vaccination. Rehabilitation therapy such as physiotherapy, high-pressure negative ion oxygen therapy, etc. is beneficial to the recovery of lung function in COPD patients. 3. Psychological adjustment A good mood will help patients to face the disease positively, increase the compliance of treatment, and help to establish good interpersonal relationships, which will be more conducive to the recovery of the disease. 4. diet regulation Eat more fruits and vegetables, you can eat meat, fish, eggs, milk, beans, buckwheat. Talk less when eating, whistle effort to eat more slowly. Fat to lose weight, thin to strengthen nutrition, eat less and more meals. 5. Long-term home oxygen therapy If you have whistling failure is recommended long-term low-flow oxygen, more than 15 hours a day. 6. Medication Available medication can reduce or eliminate the patient’s symptoms, improve activity tolerance, reduce the number and severity of acute attacks to improve health status. Inhalation therapy is preferred. Educating patients on the proper use of various inhalers and explaining to them the purpose and effects of treatment can help them adhere to treatment. (1) Bronchodilators There are three types of bronchodilators commonly used clinically, β2 agonists, cholinergic receptor blockers and methylxanthines, the combined application of which has a synergistic effect. (2) Inhaled glucocorticoids Patients with a history of recurrent disease deterioration and severe airway obstruction with FEV1 <50% of the expected value can inhale glucocorticoids. (3) Expectorant and cough suppressant expectorants are only used for sputum that is sticky and difficult to cough up and are not recommended for regular use. Cough suppressants may not be conducive to sputum drainage and should be used with caution. (4) Antioxidants Application of antioxidants such as N-acetylcysteine and carboxymethylstilbestrol can thin sputum, make sputum easy to cough up, and reduce the frequency of recurrent exacerbations of the disease. 7. Acute exacerbation treatment (1) The goal of oxygen inhalation is to maintain oxygen saturation of 88%-92%. (2) Bronchodilators Inhale short-acting bronchodilators such as ipratropium bromide and salbutamol. (3) Systemic glucocorticoids 2014 GOLD guideline update recommends methylprednisolone for 5 consecutive days. (4) Anti-infective drugs are needed for the following three conditions: increased dyspnea, increased sputum and coughing up pus; increased pus sputum with other symptoms; and the need for mechanical ventilation.