By 2019, Korea is expected to be an aged society, age group of 65 and older being over 14% of the total population, considering their rapid increase today. The number of the elderly living alone or with his or her spouse will grow more and more. So this study was intended to find out the characters of elderly gathering houses in Japan through case study. The survey was taken by literatures and interview taken from the managers of the houses. It was selected the company which had branched 17 buildings all over the nation. There are three types in units in the building. One is self-supporting life house type. The other is personal care senior house type. Another is complex community house type. And the house have pointed on the participation in community. The company has attached great importance to form the co-operation network with the residents being shared same building. And it has aimed that the residents would feel being alive in their home.