Ventricular septal defect is the most common type of congenital heart disease, accounting for about 25% of all cases. In general, small ventricular septal defects can gradually become smaller or heal spontaneously within one year after birth, and about 25%-40% of children with ventricular septal defects may close on their own at the age of 3-4 years. There are two main methods of minimally invasive surgical treatment for ventricular septal defects, including percutaneous and transthoracic methods. The transthoracic approach is often used more often in clinical practice, and transthoracic can be performed under the guidance of ultrasound. In addition, the transthoracic approach has a smaller surgical incision and can be performed by blocking the ventricular septal shunt through the ventricle and atrium, which is a simpler method. There is also a percutaneous approach, which requires access from the vessel to build a track with special instruments is more complicated and is more difficult to operate under the guidance of ultrasound and radiation.