This study will focus on status and structure of Japanese public reverse mortgage that has been changed since 1980. Especially, on newly introduced long-term supporting system for living fund after 2003. Private housing construction companies studied preceding cases of real estate products with reverse mortgage theory and also induced learning point from the change of Japanese public reverse mortgage market. From this on the purpose of this study is suggesting a better plan for successful reverse mortgage introduction in Korea. The data and articles of Japanese reverse mortgage are used for this study, also reverse mortgage related data are collected from web-site and research reports from the inside and outside of the country. From the total postal survey in September, 2004, the system contents after Year 2003 are described here. As described above, reverse mortgage is a way to support public social pension system and expected to play an important role as an assisting method for stable housing and supporting living cost to the aged. Eventually, it is necessary to find a way for introducing a public reverse mortgage as a welfare system for low income people.