Chronic obstructive pulmonary disease (COPD), also known as chronic obstructive pulmonary disease, is a preventable and treatable disease characterized by incomplete reversible airflow limitation and is associated with an abnormal inflammatory response of the lungs to harmful particles or gases such as cigarette smoke, often with progressive exacerbation. It includes multiple symptoms and various degrees of lung damage and inflammation. Chronic bronchitis and emphysema are both part of the pathological changes of COPD. Pulmonary function test is the golden indicator for the diagnosis of COPD, and it needs to be reviewed regularly to understand the changes of the disease and judge the effect of treatment. 3.Chronic bronchitis is clinically defined as chronic cough, sputum, (or with) wheezing, which lasts for 3 months per year for 2 consecutive years, except for other causes of chronic cough and sputum. It can be complicated by obstructive emphysema, pulmonary hypertension, and pulmonary heart disease. Emphysema is a permanent dilatation of the distal air spaces of the terminal fine bronchi with destruction of the alveolar wall without significant fibrosis. 4, Quit smoking is the primary measure to prevent and control COPD, in addition, exposure to occupational dust and chemicals, indoor and outdoor atmospheric pollution, passive smoking, early childhood respiration, infection, etc. are important factors that cause COPD to occur. 5, once the cough aggravates, sputum volume increases or yellow sputum, sudden chest pain, wheezing aggravation, fever and other symptoms, you must promptly consult a doctor to avoid respiratory failure and life-threatening. 6.The main treatment measures during the exacerbation of COPD are: oxygen therapy, anti-infection, bronchodilatation, expectoration and cough suppression, ventilator-assisted ventilation, etc. It is advisable to grade the treatment under the guidance of a specialist during the stable period of COPD. 7.Bronchodilators are one of the main choices of drug therapy, mainly β2 agonists such as salbutamol, terbutaline, formoterol, etc.; anticholinergic drugs such as Echolal (ipratropium bromide) aerosol, Siliqua (tiotropium bromide); methylxanthines such as aminophylline, etc. Anticholinergics have fewer side effects, not easy to drug resistance and other characteristics, can be a single inhalation or combined with other drugs inhalation (such as cortisone aerosol, nebulizer), has been confirmed: long-term application can improve health status. 8, asthma medication to inhalation preparations as the first choice. 9.Drink more boiled water or/and apply Mucosolvan and other phlegmolytic drugs can promote phlegm discharge. 10.Practices such as qigong, taijiquan, breathing exercises, ladder climbing and car collapse can be chosen to improve endurance and increase lung function. Do abdominal breathing and deep and slow exhalation with contracted lips to improve the function of respiratory muscles. 11, pay attention to keep warm, prevent colds. 12.For long-term obvious oxygen deficiency, home oxygen therapy can be carried out for at least 10-15 hours a day. 13.With acupuncture, acupuncture and Chinese medicine, the effect is better and the side effects are reduced. 14, long-term adherence to treatment is an effective way to stop the progress of the disease. 15, the disease requires comprehensive treatment, patients should consult a regular hospital respiratory specialist, do not believe in witch doctors, gods and “secret medicine”, or delay the disease for life.