Currently, the following methods are commonly used for gastrostomy: surgical gastrostomy (flap-tube gastrostomy, purse-string gastrostomy); percutaneous endoscopic gastrostomy (PEG); and percutaneous radiologic gastrstomy (PRG). PEG and PRG have the advantages of being minimally invasive, economical, safe and fast compared to surgery. Generally, gastrostomy is feasible to solve the nutritional problem if the patient cannot eat through the mouth but the gastrointestinal function is normal, and PEG and PRG have their own advantages in terms of specific indications. Pre-operative fasting is required for 8 hours, but children can shorten the fasting time to ensure normal coagulation function, ECG and platelets, and discontinue anticoagulant drugs. Postoperative fistula care: change the medication daily for 2 weeks after surgery to check for redness, swelling, exudation and bleeding around the fistula; after 2 weeks, the sinus tract can be formed and the medication can be changed 2-3 times a week, while checking the tightness of the tube. Fistula tube care: daily drug changes pay attention to the depth of the fistula tube, not too tight, otherwise prone to ischemic necrosis of the abdominal wall of the stomach wall, as well as internal pad syndrome, not too loose, otherwise prone to nutrient overflow skin. Specific notes on postoperative feeding: 1. 24 hours after surgery, start feeding through the stoma tube; 2. elevate the head of the bed when feeding and keep it until 30min after the end of feeding; 3. less than 300ml/day at first, start with low concentration, gradually increase the concentration and amount of nutrient solution, and then gradually increase to 1500-2000ml/day according to the situation; 4. 4-6 times a day, 200-250ml each time The food temperature should be 38.0-40.0 degrees; 5.Pump back before each feeding, if it is more than 100ml, then reduce the amount appropriately; 6.After each feeding, ask the patient to sit semi-sitting position for 30-60min, aspiration should be done before or 1 hour after feeding; 7.After each feeding, use about 50ml of water to flush the stoma tube; 8.The food temperature should not be too high.