The purpose of this study is at researching relationship among elderly's living stress, social support, and depression in order to provide a correct guideline for welfare for the aged. The results are as follows. Firstly, it was found that elderly's living stress levels are not particularly high, instead health stress was found to be higher than other factors. Social supports were in order of emotional, material, and informational support and the stress were normal level. Secondly, when the relationship among living stress, social support, and depression is examined, economic, health, and family stress, all factors of living stress, have valid correlation with depression. Thirdly, after examining the effect of elderly's living stress on depression, family stress was found to be the leading influence of living stress, and the results show that the higher the living stress, the higher the rate of depression. Fourthly, mental support has a highest effect on social support, and it was found that the higher the social support, the lower the rate of depression. The local government needs to vitalize programs that connects the elderly with volunteering activities and workplace placement projects for the elderly who experiences living stress, and family life education programs and family consultation programs are needed to be vitalize in order to heighten social support. This is because these kinds of programs can be those for social support, and has effects on depression.