Congenital heart disease is the most common birth defect and the leading cause of early infant death.Prenatal echocardiography has demonstrated a high detection rate for fetal congenital heart disease. Clinical application of prenatal echocardiography has greatly decreased the birth rate of newborns with complex congenital heart disease

provided the possibility of fetal cardiac intervention for congenital heart disease and also contributed to decreasing preoperative mortality and morbidity of the newborns with critical congenital heart disease. This article reviews the application value of prenatal echocardiography in the clinical diagnosis and treatment of congenital heart disease.