In traditional society, home is a place for meeting members' needs, this function, however, has been replaced by other social institutions. In the modern society, however, home is no longer to be regarded as a place in which can provides needs for all members. Due to the formation of family and the mobilization of population in the globalization age, the meanings of home have shifted at qualitative and quantitative levels. Since 1945, the state, through public policies, has significantly transformed the living experiences of family members. Therefore, this paper aims to explore the homeless policy in Taiwan, based on the examination of household registration, whether or not can meet the needs of global society. And, social service programs, based on residual welfare principle, may not achieve the idea of social citizenship.