The success rate of atrial septal defect sealing surgery is usually 99% or more. Atrial septal defect is a common congenital heart disease due to abnormal development of the original atrial septum, resulting in a residual hole between the atria when the child is born. The success rate of surgery for atrial septal defect alone can be more than 99%. Surgery is divided into two methods: medical intervention for umbilical sealing and surgical open heart. Medical intervention has certain requirements for the location and size of the atrial septal defect and the age of the child. Surgery can only be performed when the age is over 3 years old, the defect is located in the center of the atrial septum, and the diameter of the atrial septum can be placed into the umbrella piece, which is at a certain distance from the valves, and does not interfere with the valve closure or the blood reflux. Currently, most atrial septal defects can be treated with umbrella occlusion. Patients with atrial septal defect occlusion should go to the hospital in time for examination and treatment under the guidance of the doctor.