This study is to observe the effect of oral health of elderly on overall health status and social activity to provide basic data for oral health improvement program for the elderly and development of related policies. The survey was conducted from July 25th to July 29th, 2011, and used 145 copies for this research analysis. As a result of correlation analysis, it is observed that all of 4 sub factors of Geriatric Oral Health Assessment Index have significant static correlation with overall health status of elderly and social activity also has significant static correlation with oral health. As a result of regression analysis, the functional limitation out of sub factors showed significant positive effect on health status and psychological effect has significant positive effect on social activity. Based on the above result, it is observed that, at the time of rapidly entering to an aging society, the life quality related to oral health of elderly which is part of overall health and overall health status and social activity areas that are recognized by the elderly have significant correlation. And, it is important to understand the factors of oral health affecting health status and social activity. Based on the result of this study, more researches on the development of oral health program and development of assessment tool that can be easily employed should be made.