Cardiac surgery is a discipline that has developed rapidly in recent years, and the level of treatment for congenital heart disease at home and abroad has improved greatly in recent years, but some non-specialist medical workers have not kept up with the development trend in time, so they do not quite understand the current level of cardiac surgery. In fact, the situation at that time was that the mortality rate was very high when the disease was treated under the age of 2. But now the level is different, at present in the hospital outpatient clinic often see older children with precocious heart disease come to the hospital, there have been very serious, and even lost the time for surgery. At present there are five main misconceptions about the prevention of congenital heart disease diagnosis and treatment: 1. The cost of congenital heart disease treatment. The cost of congenital heart disease treatment is related to the severity of the child’s condition, age and the materials used in surgery. Children with small age and complicated condition require more demanding materials such as artificial lungs and ultrafilters, which make intra-operative and post-operative treatment difficult, therefore, the treatment cost is relatively high; while those with large age and light condition without using expensive surgical materials have low cost. Therefore, the cost of treatment varies from case to case. 2. Looking around and waiting for non-surgical treatment methods, delaying the best time for surgery. With the development of interventional technology, some neonatal congenital heart diseases can be treated by interventional technology. Interventional treatment has the advantages of less trauma, faster recovery and aesthetics, and the cost is relatively high. At present, congenital heart diseases with good results and mature technology for interventional treatment include patent ductus arteriosus, atrial septal defect, pulmonary valve stenosis, and certain parts of ventricular septal defect. However, each method has its own indications and advantages and disadvantages, and should be chosen according to the magnitude of the advantages and disadvantages.