Gastric diseases are divided into many types, generally gastritis, gastric ulcer, gastric cancer, gastric bleeding and so on are more common and frequent. Generally, the drip for gastric disease has the main function of protecting the mucous membrane, inhibiting gastric acid, replenishing electrolytes and replenishing liquid components. Generally, the drugs to inhibit gastric acid include omeprazole, pantoprazole, rabeprazole, esomeprazole, etc. In addition, the drugs to protect the gastric mucosa are mainly taken orally. During gastric disease because there are also abdominal pain, abdominal distension, nausea, vomiting, etc., there may be electrolyte disorders, so electrolyte components, such as sodium chloride, potassium chloride, etc., may be applied to the drip, which need to be combined with blood routine, electrolytes, biochemistry, and other indicators for a comprehensive analysis. If gastric bleeding or black stool occurs in gastric disease, it is necessary to further clarify the cause and site of bleeding, and targeted treatment to stop bleeding.