The care of children with congenital heart disease in the family should pay attention to the following aspects: 1. Develop a living system suitable for the amount of activity of the child. Mild asymptomatic children should live like normal children; symptomatic children should limit their activities and avoid emotional excitement and violent crying so as not to increase the burden on the heart; heavy children should rest in bed and be given proper living care. 2. Prevent infection Introduce the knowledge of self-protection and prevention of infection to children and parents, and avoid contact with patients with infectious diseases. The air in the room should be fresh and the clothes should be moderately hot and cold to prevent cold. Once an infection occurs, it should be treated actively. 3.Supply nutritional needs Give high protein, high calorie, high vitamin diet to enhance physical fitness. Limit salt intake appropriately, also give the right amount of vegetable-based coarse fiber food to ensure smooth stool, heavy children with feeding difficulties, should be particularly careful, patient, less food and more meals, so as not to cause choking, shortness of breath, breathing difficulties, etc., if necessary, from the intravenous supplementation of nutrition. 4. Observe changes in condition and prevent complications (1) Pay attention to changes in heart rate, heart rhythm, pulse, respiration, blood pressure and heart murmur, and monitor with monitor if necessary. (2) Prevent children with tetralogy of Fallot from having hypoxic episodes caused by crying, eating, moving and defecating, etc. Once this happens, immediately place them in the knee-chest position, administer oxygen, notify the physician, and make preparations for propranolol, morphine application and correction of acidosis, etc. (3) In children with cyanotic congenital heart disease, because of high blood viscosity, the amount of body fluid decreases in summer, fever, sweating, vomiting and diarrhea, which aggravates blood concentration and makes it easy to form blood clots, causing the risk of embolism of important organs. (4) Combined anemia can aggravate hypoxia and lead to heart failure, which must be corrected in time, and the diet should be supplemented with iron-rich food. 5.Psychological care Care for the child, establish a good nurse-patient relationship, fully understand the parents and the child’s expectations of examination, treatment and prognosis, introduce the knowledge of the disease, treatment plan, examination process, ward environment, eliminate fear, convince parents and the child to cooperate with the examination and treatment, so that the treatment work can be carried out smoothly. 6.Health education Guide children and parents to establish a reasonable living system and activity level according to the disease, maintain nutrition, enhance resistance, prevent various infections, and acquire the knowledge of observing changes in the disease. When tonsil removal and tooth extraction are performed, give sufficient antibiotics. Prevent the occurrence of infective endocarditis. Those with good heart function can be vaccinated on time. Visit the hospital regularly for checkups so that the child can safely reach an age suitable for surgery.