The purpose of this study is to clarify the necessary supports for the elderly to staying at home as long as they want. We think that home modifications are one of the most important factors to continue at home, and we research the subsidy for home modifications of Sweden. We can find many differences in the system of home modifications between Sweden and Japan. Both countries have same problems such as high rate of aging and large fiscal burden of the elderly care. To solve that, Sweden promote home care with great caring services and appropriately home modifications , which is much more advanced than Japan.