peptic ulcer bleeding is disease of digestive system common severe disease, peptic ulcer basal vascular susceptibility to gastric acid attack caused by bleeding, so the reduction of gastric acidity is the treatment of peptic ulcer with basic principles; pantoprazole is a gastric proton pump inhibitor, can inhibit the secretion of H+ in the final stages of cell wall on the basis, gastric acid and gastric acid secretagogues and various stimulated gastric acid secretion was inhibited, intravenous administration, quick action, strong and durable, can maintain a higher level of gastric pH, create a good environment for hemostasis.