Parents of children with congenital heart disease should give more careful care and attention to their patients, limit the amount of activity appropriately according to the severity of the disease, and do not overexert the child. 1, most children with congenital heart disease can be vaccinated on time to enhance the resistance to disease. 2.Establish good living habits, appropriate outdoor activities, avoid sudden cold and heat, especially not too warm, to 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 dose used should be accurate, do not stop taking or overdose at will. If there is liver enlargement and lower limb edema, diuretics should be taken at the same time and potassium salt should be supplemented. If symptoms such as nausea, vomiting or irritability appear after activity, you should go to the hospital promptly. 5, cyanotic congenital heart disease, such as tetralogy of Fallot, children who suddenly appear hypoxic syncope, can curl the child’s limbs, give inhalation, 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 blood clots due to a large amount of water loss resulting in increased blood viscosity, leading to vascular embolism. 6. For those who do not need immediate surgery, they should go to the hospital regularly for examination, observe the changes in their condition and choose the appropriate time for surgery. In addition, parents should strengthen the psychological care of the affected children, make them face the disease they are suffering from, establish confidence to overcome the disease, and work closely with the medical staff to take effective measures for treatment, so that the affected children can grow up healthily and create conditions for surgical treatment. 7. It is best to go to a regular hospital and find a specialist to understand the disease in order to get professional answers and treatment so as not to delay the disease.