Harima Science Garden City is being constructed by Hyogo Prefectural Government in the south-west part in Hyogo Prefecture. The area under development is 960 ha. This city will include research institutes, academic institutions, industrial factories and houses, and the amenity for the people to live in this city is aimed. The SPring-8 is the biggest institute and Faculty of Science, Himeji Institute of Technology was located in order to collaborate with the SPring-8. The many research institutes will be constructed in this city by industrial companies, and one of them, Harima Research Institute of Sumitomo Electric Industry has already started its activities. The total concept to construct Harima Science Garden City is described.