Mild cases of chronic obstructive pulmonary disease should be treated with bronchodilators, smoking cessation, environmental pollution control, and reduction of inhalation of harmful gases or particles. According to the pulmonary function classification of the severity of airflow limitation in patients with chronic obstructive pulmonary disease (COPD), pulmonary function is considered mild when it is classified as grade 1, at which time the patient’s pulmonary function first-second forceful expiratory volume (FEV1) as a percentage of the predicted value is ≥80%. Bronchodilators are the main measures available to control the symptoms of chronic obstructive pulmonary disease (COPD). Patients with mild COPD need to be given inhalers such as budesonide formoterol or salmeterol fluticasone, which are usually taken for a minimum of 3 months and cannot be discontinued, as discontinuation of the medication may lead to COPD progression in the direction of severity. Smoking cessation, controlling environmental pollution and reducing the inhalation of harmful gases or particles can help prevent the onset and progression of COPD. If you are diagnosed with mild COPD, it is recommended that you undergo standardized treatment as soon as possible. The above medications should be used under the guidance of your doctor, and you should not use them on your own.