The authors analyzed 72 cerebral stroke with diabetes mellitus who were admitted to our hospital during 1989 to 1993. Pathophysiology and clinical characteristic complication and mortality was analyzed. Followings are results: 1) Among 398 total cerebral stroke who were hospitalized to our hospital during 1989 to 1993, there were 72 cerebral stroke with diabetes(18%). 2) The rate of cerebral infarction and hemorrhage was 67% and 33%. The infarction rate was much higher compared with it of general cerebral stroke. 3) Various complications were presented and mortality rate was 24.% which was regarded higher than it of general cerebral stroke. 4) Association of mortality, prognostic index and other variables were analyzed.