The prevention of chronic obstructive pulmonary disease can be roughly divided into the following three areas: 1, anti-smoking as well as smoking cessation: anti-smoking as well as smoking cessation is very important for patients with chronic bronchitis, not only the patient himself should not smoke, but also other members of the patient’s family should also quit smoking. If you can’t quit, don’t smoke in the patient’s room to ensure that the patient’s living environment has fresh air. There are other irritating gases, such as kitchen fumes should also try to avoid contact; 2. Preventing cold and flu: Preventing cold and flu is a very important measure, slow obstructive pulmonary is easy to attack when the climate suddenly becomes cold, in addition to excessive physical exertion, smoke and dust stimulation and other situations are also easy to trigger. As almost all patients are elderly, the body’s resistance is poor, it is easy to be affected by these external factors; 3, regular physical exercise has a good effect on the prevention of slow lung. Physical activity can improve patients’ immunity and respiratory ability, and thus can play a role in preventing the disease. For example, frequent abdominal breathing exercises can significantly improve breathing. Usual walking and tai chi are very beneficial to the body. However, physical activity should be performed without causing fatigue and breathing difficulties, and rest should be taken in place before severe breathing difficulties and fatigue occur; in addition, if coughing attacks are frequent and accompanied by increased sputum, one should see a doctor promptly to control respiratory infections early, which is also an important measure to prevent chronic pulmonary heart disease and chronic obstructive pulmonary disease.