PURPOSE: The study evaluated the determinants of caregiving self-efficacy among dementia caregivers. METHODS: Data were collected through a structured questionnaire survey from dementia sufferers and caregivers by nurses or social workers caring for dementia sufferers at health centers during July to September 2007. Multiple stepwise regression analysis using SAS Version 9.1 was performed to examine the determinants of caregiving self-efficacy. RESULTS: Factors affecting caregiving self-efficacy were behavioral and psychological symptoms of dementia (BPSD), activities of daily living (ADL), and age of dementia sufferer. CONCLUSION: To increase dementia caregivers' self-efficacy, there is a need to reduce difficulties of dementia caregivers in caring BPSD and increasing the ADL level of dementia sufferers by providing guidelines of care and intervention programs for BPSD and ADL management.