The describe research 45 patients had gastrointestinal bleeding by using MSCT-64 systems. Result of study showed that the age suffer from gastrointestinal bleeding from 18-60 years, accounted 75.56 percent. Patients had history of gastrointestinal bleeding occupied 26.67 percent, non-history were 73.33 percent. The main symptoms appeared after scan is nausea accounting 66.67 percent. On images of computed tomography showed that good stretch and averages duodenum accounted 86.67 percent. The most common bleeding located ileum accounting 71.11 percent, jejunum accounting 26.67 percent. The most common causes were small intestine ulcers accounting 62.22 percent. Damage to coordinate as mesenteric artery thrombosis, ileus image and free of abdominal effusion image were 4.65 percent, 22.22 percent, 37.78 percent, respectively.