The purpose of this research is to suggest a theoretical base and guideline for the national scientific and techmical information ivfrastructure of the national scientific technology. And the obhective of this study is to contribute ti strengthen the need of the building of the national scientific and technical information center and provide operation programs and vision toward information center which will be established later. This study suggesrs a plan and strategy which make it possoble to conduct functions asthe national repository, clearinghouse, and portal gateway of the electronic resource and propose apace program fpr the optimal building construction. Therefore, the contents of this study cover the building of the national scientific and technical information center as well as the basic plan of scale and space progran, validity analysis of site location and environment