Ruptured pseudoaneurysm with gastrointestinal bleeding is a rare but frequently fatal complication in patients with pancreatitis. Arteriographic embolization of visceral artery pseudoaneurysms is a safe and highly effective technique for the identification and treatment of hemorrhage even in critically ill patients. We report a case of massive hematemesis caused by rupture of a pseudoaneurysm successfully treated by transcatheter embolization.