1. Objectives The purpose of this research is to find out the Constitutional characters of Stroke inpatients. 2. Methods Stroke inpatients admitted into KyungHee Oriental Medical Center from January 2000 to April 2004, were divided into 2 group, cerebral infarction 493 inpatients and cerebral hemorrhage 83 inpatients. This research investigated the distribution of Sasasng Constitution, the gender, the age decade, the period of admission, the elapse of the time after onset, the course of admission, the frequency of Sasang Constitutional Herb-medicine, the past history of hypertension and diabetes mellitus, the obesity, the prevalence rate of hypertension and diabetes mellitus, EKG abnormality and hyperlipidemia. 3. Results & Conclusions The Sasang Constitutional distribution of cerebral infarction 493 inpatients was 0.4% of Taeyangin, Soyangin 34.1%, Taeurnin 56.4%, Soeumin 9.1%. The Sasang Constitutional distribution of cerebral hemorrhage 83 inpatients was Taeyangin 1.2%, Soyangin 47.9%, Taeurnin 43.4%, Soeumin 9.6%. Stroke incidence rate of Taeumin and Soyangin inpatients was high. Sasang Constitution had significant relations with the prevalence of the obesity and hypertension in cerebral infarction inpatients, the prevalence of obesity, diabetes mellitus and ECG abnormality in cerebral hemorrhage inpatients.