In recent years, offers a variety of welfare services for the elderly in residential care services for the elderly has opened eldercare, senior apartments and senior housing services, senior housing began in 2004 the Executive Yuan approved the "Promotion of Private Participation promote housing construction program for the elderly." In this study, from the elderly to receive residential services needs, by actual demand through discussion, analysis of elderly housing whereby proper role and function. In this study, a qualitative case study conducted in-depth interviews to collect data, interview subjects, including six respondents. Learn about the residents at different levels of Maslow, they are actually looking for senior housing has a role, and the role given to the proper function. Visible from the study through interviews residents can actually have a lot of senior housing that role, and some recurring roles at different levels, but expect demand function because of different levels and different.