The baby’s gastrointestinal bleeding is usually urgent and heavy, so we should pay enough attention to the following treatment: 1. fasting, gastrointestinal decompression, which is a necessary treatment, to win the baby’s cooperation, to reduce the baby’s pain. 2. to give a considerable amount of intravenous fluid supplementation, because the baby’s age is relatively young, so the supplementation of body fluids should be appropriate, to observe the patient’s blood routine, biochemical and other results from time to time, to give appropriate adjustments. 3. 3, in the patient’s stable condition, the bleeding site must be clarified as soon as possible, for example, the patient can do gastroscopy or colonoscopy, if necessary, to give gastrointestinal imaging, can clarify the specific bleeding site, and give the relevant hemostatic treatment, so that the patient can recover well. In case the condition requires, surgery is even necessary, and close observation should be continued after the surgery in order for the patient to recover well.