According to the understanding, many patients with chronic obstructive pulmonary disease do not have any symptoms during the remission period, but airway inflammation and hyperresponsiveness still exist, so avoiding provoking factors is the main content of remission prevention. Patients with chronic obstructive pulmonary disease should pay attention to the following aspects in daily life: 1, indoor air is often kept clear, air filtration devices can be installed if possible, indoor furnishings strive to simple, not carpet; 2, looking for triggering factors, and take avoidance, avoidance, replacement, suspicion response method. Common triggering factors are inhalation of allergens, harmful dust, viruses, bacteria, climate change, diet, spiritual, etc.. Among them, the most important is allergens, viruses, bacterial infection, so once the cold must be promptly to the hospital to seek medical attention. In addition, we should also choose flowers and grass carefully and try not to keep pets; 3. Avoid a salty, sweet and spicy diet; 4. Exercise appropriately for cold tolerance, such as swimming and washing cold water face, but we must pay attention to gradual progress; 5. Because of various allergens, pollen, mold, etc. floating in the air, or irritants, industrial pollutants, car exhaust in the midday and afternoon, you should try to choose the morning to go out.