The suitable exercises for chronic bronchitis patients are as follows: 1. Encourage patients to carry out aerobic exercise, and even under mechanical ventilation, patients are still encouraged to carry out physical exercise; 2. Advocate pulmonary rehabilitation training, which is relatively more specialized and needs to be carried out in specialized respiratory wards and specialized rehabilitation departments, including diaphragm training, lip-contracting respiration, muscle-strengthening training and tai chi skill exercise. It should be noted that patients with more serious conditions are not suitable for strenuous exercise, because they themselves are airway lesions, ventilation, oxygen supply is insufficient, and are not suitable for high-intensity training.