Pulmonary arteriovenous malformations (PAVMs) are rare congenital anomalies resulting from the direct communication between pulmonary arteries and pulmonary veins without the interposition of a capillary bed with an increased risk of severe complications such as rupture, haemothorax, and hypovolemic shock. We report a case of Complex type PAVMs with 34 week pregnancy presented with dyspnoea, cyanosis and underwent intrauterine death.