Before the child receives surgical treatment, the parents need to carefully observe the child’s breathing and mental status, which can be found in the heart failure scale. Daily feeding is important to maintain balanced nutrition, vitamin supplementation, etc. and avoid overeating. It is best to feed under the guidance of a pediatric cardiovascular specialist. After the child receives the surgical treatment: 1. After the operation, make sure to take the medication on time and in sufficient quantity according to the doctor’s prescription, and do not stop the medication casually; follow the discharge medical advice for timely review. The dosage and course of postoperative medication should be decided according to the preoperative cardiac function, pulmonary hypertension and early postoperative recovery status. 2. Surgery is, after all, a major trauma, and it may take 2 to 3 months or even longer to fully recover from the damage to the systemic state. During this recovery period the child may experience a variety of discomforts, but they generally last for a short period of time. For small infants, careful observation of the child’s physical strength, appetite, and responsiveness (or mental state) is a relatively accurate sign of the postoperative recovery status. As long as these items have all recovered significantly, some symptoms that appear temporarily generally do not require special treatment; if symptoms do not ease for a longer period of time, a physician should be consulted as soon as possible. Generally speaking, the heart function and lung function of a child after congenital heart disease correction surgery will be significantly better than before surgery, approaching or reaching the level of “normal” children of the same age. Except for special cases where the physician has given special instructions, most children can basically return to their preoperative state in 2 to 4 weeks after surgery, and some children can even eat significantly more because of the reduced cardiopulmonary burden. In the feeding mainly need to pay attention to: adhere to a small number of meals, avoid overeating; adhere to the diet balance, avoid partial food; adhere to the combination of wet and dry soft and hard, avoid a lot of soup; adhere to vitamin intake (fruits and vegetables), avoid nutrient deficiencies. 4, the amount of activity: generally within 6 months after surgery does not advocate the child to carry out strenuous activities, such as running, jumping, etc.. Those with normal heart function can walk around in front of the bed and behind the house and get some sunshine. For those with poor cardiac function (large liver, edema, faster respiratory heart rate, poor mental appetite), the amount of activity should be strictly controlled and more bed rest should be given. Three to six months after surgery, gradually increase the amount of activity according to the actual situation of the child, but still pay attention to control the activity! When there is unexplained panic, shortness of breath, dyspnea, cyanosis, nausea, vomiting, loss of appetite, swelling obvious should be promptly to the hospital to identify the cause to be treated, should not be careless! For parents of precocious children who are concerned about vaccination, don’t worry, vaccination can be given 3 months after surgery. If the child has never been vaccinated after birth (i.e., did not participate in basic immunization), you should choose the best time for the baby to be vaccinated 3 months after surgery. If high fever and rapid respiratory heart rate occur after vaccination, the condition should be closely observed and, if necessary, treated by contacting the local pediatrician of the pediatric department.