Extracorporeal membrane oxygenation(ECMO) provides stable oxygenation to prevent elevation of pulmonary vascular resistance and bypasses a significant part of cardiac output to the pulmonary vascular bed to reduce pulmonary perfusion pressure. In addition, ECMO prevents right heart failure and low cardiac output by means of ventricular assist and reduction in volume load to right ventricle. As a result, ECMO can be used for the treatment of pulmonary hypertensive crisis after surgery for congenital heart disease, especially when it is refractory to conventional measures. We report a case of postoperative pulmonary hypertensive crisis, developed in a 37-year-old male with patent ductus arteriosus with secondary pulmonary hypertension, which was successfully managed including ECMO.