At present, the treatment of congenital heart disease mainly includes medical intervention and surgical treatment. Interventional treatment is guided by X-ray, ultrasound, etc., through the femoral artery or femoral vein at the root of the thigh, a catheter of only 2-3 mm in diameter is sent to the part of the heart to be reached, and the lesion is examined quantitatively or qualitatively, and then the lesion is blocked, dilated or embolized with specially designed equipment, so as to achieve the purpose of cure. Interventional treatment has the following advantages: 1, free from the pain of open-heart surgery and surgical complications; 2, unless the child or the child is extremely uncooperative, there is no need for general anesthesia; 3, direct vision blocking, embolization or expansion of the therapeutic equipment used are controllable outside the body, such as inappropriate can be removed and replaced, so the success rate is high, the efficacy is remarkable. 4.Short hospitalization time, one day before surgery, one to two days after surgery can be discharged, and quickly return to study or work; 5.The probability of serious complications is very low. 6.No surgical scars, do not affect the aesthetics The indications for interventional treatment are: arterial catheterization, atrial septal defect, ventricular septal defect, pulmonary valve stenosis, pulmonary arteriovenous fistula embolization, coronary arteriovenous fistula embolization, mitral valve stenosis, vena cava stenosis, aortic constriction, trisomy of Fallot, etc.