This longitudinal study examines the burdens and related factors for stroke patient's primary family caregivers. Sixty-one patients treated for stroke at a general hospital in Chung-nam province and family member caregivers participated in this study from July 28, 1998 to August 1, 1999. Family caregivers' burdens were assessed by the burden scale originally developed by Zarit(1980) and Novak &Geust(1989) and modified by Oh's(1993) for use in Korea. The burden scale instrument consists of five subscales.: financial burden, social burden, physical burden, dependency burden, and emotional burden. Repeated ANOVA and Stepwise multiple regression were used in the data analyses. The results were as follows: The burden mean score was 3.23 in the hospital, 3.26 after hospital release, and 3.27 in the home environment. In the hospital, a patient's degree of cognition, and social support for family caregivers were significant factors affecting the sense of burden felt by family caregivers. After hospital release, the significant factors affecting the sense of burden were the degree to which stroke patients could participate in daily living activities, social support for family caregivers, and changing to a second caregiver. In the home environment, the most significant factor affecting the sense of burden was social support for family caregivers.