Chronic Obstructive Pulmonary Disease (COPD) refers to chronic obstructive pulmonary disease (COPD). Generally, timely treatment of moderate COPD can control the symptoms, but not cure them. COPD is a common chronic airway disease in clinical practice. According to relevant data, in general, for patients with moderate COPD who have timely treatment, strong compliance, and can actively cooperate with doctors to improve their living habits, most of them can control their symptoms in time, avoid acute exacerbations, and delay the development of the disease, but not cure. However, for patients with moderate COPD who are not treated in time and do not cooperate with doctors to strengthen daily life management, with further aggravation of the disease, it may cause serious complications such as spontaneous pneumothorax, chronic respiratory failure and chronic cardiogenic heart disease. To summarize, patients with moderate COPD need to cooperate with doctors for treatment as soon as possible, follow up on time, and closely observe the changes of their conditions.