Mild obstructive ventilatory dysfunction is usually due to the presence of chronic airway inflammation in the patient and airway remodeling, resulting in airway narrowing and obstructive ventilatory dysfunction. Obstructive ventilatory dysfunction, commonly found in chronic obstructive pulmonary disease, asthma, common causes include chronic airway inflammation caused by long-term smoking, dust particulate matter irritation , and may also be caused by exposure to allergens that cause airway spasm. In patients with mild obstructive ventilation dysfunction, the decline in lung function is mild, most patients may not have clinical symptoms, daily activities are not limited, after going upstairs, climbing and other activities, patients may show shortness of breath, chest tightness and other discomforts. It is recommended that patients actively intervene to improve the above discomfort, slow down the rate of lung function decline and the progression of chronic obstructive pulmonary disease, improve the prognosis of patients, and improve the quality of life.