In this paper, the author intend to introduce briefly the process of Japanese housing policy after the Second World War. The reason why the author focuses the political schemes and programs for developing new technology is , that Japanese planners had believed new technology could contribute to the solution of housing problems and considerable efforts had been paid for technology development in the field of housing policy

Japanese rapid growth in economy had caused enormous and dramatic changes in society in a very short period. The theme of housing policy and the aim of technology development have been obliged to follow the ever changing needs of the society . This waves of changing also have influenced the production systems of housing so that appropriate technology which is defined by socioeconomic conditions had been transformed.

Japanese planners should have not only read the real needs in the society at that time, but also found appropriate means to respond them. This paper divide the process of Japanese housing policy into three periods;

1.	period of Re-Construction ( end of the war - the middle of 50's)
2.	period of Mass-Production (the middle of 50's - the oil crisis)
3.	period of Characteristic -production (after the oil crisis)

In each period , the needs and the appropriate means were different

This paper describes the problems to be solved , theme of technology development , political measures to promote technology development, and political programs to disseminate the technology developed, concerning the first period and the second period when the basic framework of Japanese housing policy was established. Also this paper add the supplemental description concerning the third period.

^*1 Researcher, Building Design Division , Building Research Institute