Budd-Chiari syndrome (BCS) is a form of hepatic portal hypertension characterized by hypertension in the inferior vena cava, caused by an obstructive lesion in the hepatic veins and/or the inferior vena cava in the upper part of its opening. Patients with a long history of the disease show enlarged liver and spleen, varicose veins in the chest and abdominal wall and lower extremities, pigmentation of the lower extremities, and in severe cases, ulcers on the legs that do not heal over the years, commonly known as “old rotten legs”, which are extremely painful for patients, who usually seek medical help everywhere. In recent years, with the rapid development of interventional radiology technology, interventional minimally invasive treatment has gradually become the mainstream treatment for this disease, and interventional treatment has obvious advantages due to small trauma and fast recovery.