The aim of this study was to explore the relationship between caregivers' stress loads and dementia patient behavior, including the correlation of "patient behavior" (severity and frequency), "social care system", and "stress levels of caregivers". The research method was based on the analysis of survey data collected at a dementia specialist outpatient clinic of a medical center in southern Taiwan from November 2013 to May 2015. Those surveyed by the center included patients who visited the hospital, and their caregivers completed a questionnaire survey.