Every year, 150,000 newborns in China suffer from congenital heart disease, of which the incidence of patent ductus arteriosus accounts for about 15%, atrial and ventricular septal defect accounts for 10-12%, and pulmonary valve stenosis, pulmonary arteriovenous fistula, coronary arteriovenous fistula and so on. In the past, surgery was the only treatment method, and although the success rate was high, surgery required open-heart surgery, which was traumatic and had a relatively long postoperative recovery time. With the continuous development of medical technology, level and medical devices, non-invasive, less invasive and minimally invasive interventional treatment of congenital heart disease has created a new field of congenital heart disease treatment. During the treatment, the doctor punctures the patient’s blood vessel (usually using the blood vessel at the root of the thigh) and delivers a suitable-sized blocking device to the lesion to seal the defective or unclosed arterial duct through a specially designed sheath of 2-4 mm in diameter, under the guidance of X-ray and ultrasound, in order to achieve the treatment purpose. Through clinical practice, it is confirmed that interventional occlusion of precordial disease has the advantages of small trauma, short operation time (about 1 hour), quick recovery (can be out of bed the next day after operation), no special anesthesia and extracorporeal circulation, and short hospitalization period (about 1 week). General anesthesia is required only if the patient is too young to cooperate with the operation. The indications for this blocking procedure are very broad, and atrial septal defect, patent ductus arteriosus, and ventricular septal defect can all be treated by interventional methods. Interventional treatment of congenital heart disease is characterized by less trauma, less pain, higher success rate, lower mortality rate, shorter hospital stay and no scarring after the procedure, and the results are comparable to surgery for the purpose of radical treatment. At present, congenital heart diseases that can be treated by interventional methods include: 1, any age, weight and shape of arteriovenous catheter failure; 2, two-hole central septal defect less than 36 mm; 3, membrane and muscle ventricular septal defect; 4, simple pulmonary valve stenosis; 5, simple, multiple pulmonary arteriovenous fistula; 6, coronary arteriovenous fistula