The lung function report card usually includes lung volume FVC, lung volume VC, residual air volume FRC, and maximum ventilation volume MVV. There are more indicators on the lung function report card, and different indicators have normal range intervals, and abnormal values can help diagnose diseases. Normal lung capacity is usually 2400ml~3400ml, the ratio of residual air volume and lung capacity can be used to determine whether there is emphysema or not. Maximum ventilation is usually 80~106 liters per minute, and the expiratory volume in one second is 83%, which can be used to distinguish obstructive, restrictive and mixed ventilation dysfunction. The above content is for reference only, and is not based on diagnosis and medical treatment. Patients should give the checklist to the doctor in time after getting the checklist, so as to facilitate the doctor’s diagnosis and treatment.