ECMO is extracorporeal membrane pulmonary oxygenation. It is to lead the patient’s blood from the body to the outside of the body, after membrane lung oxygenation, and then use a blood pump or extracorporeal circulator to perfuse the blood back into the patient’s body. ECMO is a clinical emergency facility that can temporarily replace the patient’s cardiopulmonary function and reduce the burden on the patient’s heart and lungs. This prevents organ failure and brain damage caused by acute hypoxia. ECMO is mainly used for patients with cardiac arrest and acute severe cardiac failure, such as massive myocardial infarction, severe pneumonia, etc., to give doctors time to save the patient. The use of ECMO needs to be judged according to the patient’s specific condition and clinical manifestations, and it is important to note that this treatment should not be used for a long period of time.