In Korea, among generations exist great differences in social opinion, value, and quality of housing. The purpose of this study is to analyze the differences in perception, spatial needs and preferences on nursing home environment among generations living in Seoul metropolitan area. Research method is consist of literature review and survey. Survey was conducted targeting people aged between 39 and 77 who has intention to move into the elderly nursing home when necessary between July 17-31, 2018. 410 valid responses were analyzed. Generation was finally divided into industrialized generation (born in 1941-1954), baby-boom-democratization generation(born in 1955-1969) and X generation (1970-1979). The results are as follows. First, more than half of the respondents had experience of their relatives or friends using nursing homes, and them visiting nursing homes. Second, the desirable size of elderly nursing homes is less than 50 residents, and residential units less than 14 people for all three generations. The industrialized households were willing to spend the highest expenditure for nursing home service, followed by X-generation and baby-boom-democratization generation. Third, the common features for public space, respondents needed library, indoor exercise space, garden, greenhouse, garden, cafe, and restaurant available for outside visitors, etc. The standard for private space were not different among generations and in-suite bathroom was essential. Fourth, the difference features among generations were that Industrialized generation preferred activities interacting with others, while baby-boom-democratization and X generation are characterized by their preference for activities by themselves. For private spaces, X generation wanted the least number of roommates, but all three generation wanted 2 or less person to share a bedroom.