The primary resuscitation measures for upper gastrointestinal bleeding: hemostasis and volume expansion. Hemostasis is to stop the blood from upper GI bleeding, regardless of the cause of GI bleeding, which must be stopped first, and this is the primary measure to treat this disease. Next is volume expansion, because gastrointestinal bleeding is often prone to a decrease in effective circulating blood volume, resulting in a decrease in body mass and a tendency to show signs of shock, so volume expansion is the first treatment measure to ensure effective circulating blood volume and vital signs of the patient. If the amount of gastrointestinal bleeding is relatively large and prone to shock, fluid rehydration needs to be actively given. At the same time, plasma or red blood cells and hydroxyethyl starch should be transfused to replenish the effective circulating blood volume and replenish the electrolyte balance of the patient. If hemostatic drugs are given to stop the bleeding, gastroscopy needs to be completed to further assist in the diagnosis and treatment.