Objective To study the causes of bleeding and death of upper digestive tract hemorrhage in old people.Methods Clinical datas of 302 patients with upper digestive tract hemorrhage in senile group were analysed retrospectively,compared with those of 463 patients in non-senile group at the same period.Results The major causes of upper digestive tract hemorrhage in old people were gastric ulcer(96 cases,31.8%),duodenal ulcer(70 cases,23.2%),carcinoma of stomach(30 cases,9.9%).While duodenal ulcer(248 cases,53.6%) was the leading cause in non-senile group.In senile group,23 of 162 patients(mortality 14.2%) with accompanying disease died,while 4 of 140 patients without other disease died(mortality 2.9%).Obvious difference existed between the two groups(P