Parents of children with congenital heart disease should give more careful care and attention to their children, limit the amount of activity appropriately according to the severity of the disease, and do not overexert the children. 1.Vaccinations should be given on time to enhance the resistance to diseases. 2.Establish good living habits, appropriate outdoor activities, avoid sudden cold and heat, and prevent respiratory tract infections. 3.Ensure to give enough nutrition, rich calcium and vitamins. 4.For children with poor heart function, they should go to the hospital promptly, and when taking cardiac drugs such as digitalis, the dosage used should be accurate, do not stop taking or overdose at will. If there is hepatomegaly and lower limb edema, diuretics should be taken at the same time, and potassium salt should be supplemented. If there are symptoms such as blackening of the lips and extremities, nausea, vomiting or irritability, shortness of breath and lack of oxygen after activity, you should go to the hospital promptly. 5, children with cyanosis, such as tetralogy of Fallot, if the child suddenly appears hypoxic syncope, should immediately curl the child’s limbs and give oxygen to improve the state of hypoxia, usually give the child more water, strictly prevent diarrhea and a lot of sweating, so as to avoid the formation of thrombus due to the increase of blood viscosity caused by massive water loss, resulting in vascular embolism. 6.For children who do not need immediate surgery, they should go to the hospital regularly to check and observe the changes, and choose the appropriate time for surgery. In addition, parents should strengthen the psychological care of the child, make him or her face the disease he or she is suffering from, establish confidence to overcome the disease, and work closely with the medical staff to take effective treatment measures to make the child grow up healthy and create conditions for future surgery.