In case of pulmonary ventilation dysfunction, pulmonary function and chest CT examinations should be completed to clarify whether it is obstructive or restrictive ventilation dysfunction. Obstructive ventilation dysfunction is mostly seen in patients with slow-onset lung and bronchial asthma. For such patients, smoking cessation, respiratory function exercises, oxygen therapy, and long-term regular treatment with long-acting bronchodilators combined with inhalers such as budesonide, formoterol or salmeterol and fluticasone are required. The above treatments are used to improve the patient’s ventilatory function and improve the patient’s quality of life. As for patients with restrictive ventilatory dysfunction, they should actively treat the possible causes, such as interstitial pneumonia, pleural effusion, pulmonary infection and pulmonary atelectasis, etc. Only when the primary disease is controlled and improved, ventilatory dysfunction will be relieved, and some patients can also return to normal. Therefore, when ventilation dysfunction occurs, it is necessary to treat the cause as much as possible in order to bring the disease under control and remission.