Early bed activity after surgery can promote intestinal peristalsis to prevent abdominal distension, speed up the recovery of gastrointestinal function, and also avoid the emergence of pulmonary complications. If the surgery for precardiac disease is complete and there are no special complications, the child can be encouraged to get out of bed for 2-3 days, but these children are often afraid to move for fear of pain; for infants who cannot walk, parents should not be afraid to bruise the wound and should pick up the child to help do some exercises, such as stretching the arms and patting the back. Some children with cardiac insufficiency need absolute bed rest for 2-3 weeks, or even longer. Bed rest can reduce the burden on the heart, reduce myocardial oxygen consumption, and facilitate the recovery of heart function. Precordial surgery is a major operation, which involves extracorporeal circulation, incision of myocardial tissue, repair and displacement of certain parts of the heart, dissection of the sternum and wounds on the skin surface, etc. It takes about 3-6 months to repair and heal, so the recuperation and recovery process after discharge is more important, and the principle is to avoid strenuous activities for 3-6 months after discharge. This is especially true for children with more or larger preoperative heart defects, cardiac insufficiency, shortness of breath and panic after activity, and children with significant cyanosis, shortness of breath after a little activity, and children who are prone to hypoxic attacks from strenuous activity. Most of these children have significantly improved cardiac function due to successful surgical correction, and their post-operative activities have increased significantly, and they do not feel tired even when they are “playing like crazy”. For school-age children, it is recommended that they go to school after 3 months, but do not participate in physical education classes, and after half a year of review, they can gradually play with normal children if they are certified by the doctor to have recovered well. It is very important to follow up regularly and follow the doctor’s advice. Most of the children with precordial heart can gradually return to the same activities, study and life as normal people after surgical radical treatment.