Pulmonary embolism (PE) is the leading cause of maternal deaths and the incidence has been increased in recent years in Asian countries. Although the treatment options available for patients with massive PE include thrombolytic therapy, catheter-directed thrombectomy, and surgical embolectomy, there are no conclusive data or evidence on the appropriate treatment of PE. We experienced a case of massive PE with large thrombus involving major pulmonary arteries immediately after emergency cesarean section and successfully treated by thrombectomy, so hereby report the case.