Abstract
With the deepening of Japan's aging and miniaturizing of family structure, coupled with Japan's economic decline, unreasonableness and abnormal supply brought by the old pension system and ancillary equipment will bring a series of problems. Social endowment is the trend of the times. In this paper, the author expounds the problems encountered in the reconstruc-tion of urban hou- sing under the old-age model in Japan, and provides a comprehensive service to meet the needs of the elderly and be in line with their requirements and life style in the light of the housing, supporting space, public access, internal and external environment and public facilities. And the author creates economic and practical, comfortable and convenient, safe and healthy supporting residential facilities in line with living habits of the local elderly, and on this basis, the use of the Internet of things can better support the old-age housing