Gastric ulcer bleeding is clinically serious. Gastric ulcer bleeding belongs to the upper gastrointestinal tract, accounting for about 60%-70% of total gastrointestinal bleeding, and the most common cause is peptic ulcer, as well as stress ulcers, ulcers caused by non-steroidal anti-inflammatory drugs, and ruptured esophagus-fundus varices, gastrointestinal tumors, acute erosive hemorrhagic gastritis, etc. Many diseases can cause bleeding from the upper gastrointestinal tract. When bleeding occurs, stop eating and drinking immediately and do not enter anything from the mouth. Keep the head to one side or lie on the side to prevent choking and vomiting of blood, which can lead to suffocation. Try to relax the patient to avoid aggravating the bleeding due to emotional stress. Call 120 ambulance at the first time, and while waiting for the ambulance, observe the patient’s pulse, consciousness, heart rate, temperature and other changes. If you seek medical treatment on your own, try to avoid bumps or emergency brakes on the way to prevent inducing nausea and vomiting of blood again, thus aggravating the condition. Gastrointestinal bleeding is a common emergency in gastroenterology, and the amount of bleeding is usually large, and untimely treatment can be life-threatening, so daily prevention is very important. Usually, the diet should be diversified, avoid raw, cold, hard, spicy and stimulating foods, eat less and more meals, avoid pickled, smoked and fried fast food, avoid alcohol, coffee, strong tea and other undesirable stimuli, avoid overeating, maintain a good state of mind and adequate to promote the recovery of the disease.