Whether congenital heart disease can be treated depends on the type and severity of the condition. However, the treatment effect of certain particularly complex congenital heart diseases may not be ideal. There are several types of congenital heart disease, which can be classified as cyanotic or non-cyanotic according to hemodynamic combined with pathophysiological changes. Cyanotic types are mostly right-to-left shunt types (e.g., tetralogy of Fallot, macrovascular misalignment). Non-cyanotic types are mostly non-shunt or left-to-right shunt types. No shunt includes pulmonary stenosis, aortic constriction, etc. The left-to-right shunt category includes atrial septal defect, ventricular septal defect, and patent ductus arteriosus. Some congenital heart diseases may have no obvious symptoms and only a heart murmur is heard during an occasional physical examination. The ease of treatment and outcome of different types of congenital heart disease varies. Regardless of the type of congenital heart disease, as long as the child has no contraindications to surgery, it can be repaired with interventional blocking or open-heart surgery under direct intracardiac vision. Through surgery, common anatomical abnormalities of congenital heart disease are improved and the disease can be cured. In addition, congenital heart disease does not always require treatment; for example, small secondary foramen ovale defects have a 15% natural closure rate in children up to 4 years of age. Ventricular septal defects also have the potential to close spontaneously and can be followed until preschool age in children, with prompt surgical management given if clinical symptoms (such as recurrent respiratory infections and heart failure) develop. In conclusion, whether congenital heart disease can be cured or not cannot be generalized, but all of them need to be clarified by formal ultrasound, cardiac catheterization and angiography before a judgment can be given.