Congenital heart disease is a congenital developmental malformation of the pediatric heart, which is not uncommon in children. The younger the age, the higher the number of incidences. Children with congenital heart disease have poorer development, and their height and weight are lower than those of children of the same age. The child cries, suckles weakly, and has bruising of the lips and nail bed with the slightest activity or exertion, shortness of breath and marked precordial beating. Older children will complain of chest tightness, breath-holding and panic. Children with congenital heart disease should be carefully cared for so that they can survive well and create conditions and opportunities for surgery. The following issues should be noted in the care: i. To try to avoid the baby crying and meet its physiological requirements. Such as feeding on time and changing diapers in a timely manner. For breast-fed children, do not block the breast to the baby’s mouth and nose for continuous sucking, which will make him hold his breath and prone to bruising, but nurse intermittently so that the baby gets rest. The same applies to artificial feeding. Two, the indoor air should be fresh and the temperature should be appropriate. Children with persistent cyanosis should avoid high indoor temperature and humidity, and should always ensure sufficient water intake to avoid dehydration that may lead to thrombosis. Third, the diet should be nutritious and easy to digest and absorb. Don’t eat too much at one meal, but eat less and more often. Adjust the structure of food appropriately to prevent constipation. Establish a reasonable living system, avoid overexertion, but have appropriate outdoor activities, combined with static and dynamic, try to reduce the burden on the heart. V. Go to public places less often and pay attention to the prevention of various acute infectious diseases. Various vaccinations can be carried out on time as needed, but the reaction should be closely observed and effective measures should be taken in time to prevent accidents. When tonsillitis recurs, there is a risk of complication of bacterial endocarditis, and anti-inflammatory treatment should be actively carried out. Surgery is recommended for children between the ages of 4-5 and 12.