The purpose of this study is to suggest the way to improve the life satisfaction of the aged in the institutional household by examing some of factors such as individual, social support and facility that influence their life satisfaction. In the view of statistical results, the level of their life satisfaction is influenced by individual, social support and facility related to factors. First, the level of the aged’s life satisfaction is high when the person has spouse who lives together, has many children, presumes oneself as in healthy and has high-satisfaction of religion. Second, the level of the aged’s life satisfaction is high when the person has good relationship with friends in institutional household and one’s children. And the person whose relative call her or him frequently and she or he is proud of one’s being in institutional household has high-satisfaction of one’s life. Third, the level of the aged’s life satisfaction is high when the person satisfies the quality of food-services and housing services. Finally, the results of in-depth interview show that the person who has financial power, a certain of hobby and one’s role has high-satisfaction of one’s life