Interventional treatment of congenital heart disease involves the precise placement of a self-expanding double-disc blocker made of nickel-titanium alloy in the heart defect under x-ray guidance from the peripheral vasculature. About three months thereafter, the endocardial epithelial cells grow along the surface of the blocker and form a smooth endothelium, resulting in a lifelong cure. Traditional surgical open-heart surgery is the mainstay of treatment for precordial disease. The success rate of surgical procedures for simple malformations is close to 100%. However, surgical procedures require open-chest, or (and) extracorporeal cardiopulmonary diversion, which is highly invasive, has a long postoperative recovery time, and can bring about surgical complications and leave surgical scars, causing long-lasting physical and psychological trauma to the patient. In addition, there is a certain rate of recanalization after surgery for patent ductus arteriosus (PDA) and atrial septal defect (ASD) and ventricular septal defect (VSD), and some of them require reoperation. With the development of interventional materials and improvement of interventional techniques, especially Amplatzer developed a new generation of blockers for clinical congenital heart disease in 1997, which greatly promoted the interventional treatment of congenital heart disease. The current scope of treatment includes not only common congenital heart diseases such as ventricular septal defect, atrial septal defect, patent ductus arteriosus, pulmonary valve stenosis, but also rare congenital heart diseases such as aortic constriction, aortic stenosis, pulmonary arteriovenous fistula, coronary arteriovenous fistula and medical-surgical mosaic treatment of complex congenital heart diseases. Interventional techniques for congenital heart disease are becoming more and more perfect, and the procedures are simple and safe, with little trauma, no surgical scars, no blood transfusion, short hospital stay, and fast recovery after surgery. Interventional surgery is usually performed under local anesthesia, with normal diet before and after surgery, and the patient is usually able to get out of bed on the second day after surgery and discharged from the hospital on the third to fifth day after surgery. Changes in heart morphology, size and function were followed up at 1 month and 6 months after surgery, and then once a year for clinical follow-up.