This paper is to identify the cause and effect by one-group pretest-posttest design that primary care-giver’s burden for senile dementia elderly could reduce the care burden as for the lapse of time. To examine the cause and effect, among the patterns of three community-based services, it differentiated primary care-giver for senile dementia elderly among home help service, day care service and short stay service for senile dementia elderly. To reach this research goals, it examined buffering effects with using one way ANOVA. After comparing the means value of buffering effects of care burden for among home help service, day care and short stay service for senile dementia elderly, almost all of home help service for senile dementia elderly was found not to appear higher than that of day care and short stay service for senile dementia elderly. However, the result of this study could draws some social welfare practice including to care management on health-related burden buffering, user of home help service for senile dementia elderly.