The purpose of this study is to build new management strategy of special libraries in the field of science and technologies. Though information service of digital libraries were developed very much due to IT technologies, management condition of special libraries is getting more worse. Immediate cause of this problem is absence of management strategies which were veiled by IT panacea. In order to overcome this problem, this study looks into the internal and external environment change which are surrounded by special libraries. And also examined procedures and method of environment analysis which is needed to build management strategies. As the result of research, this study analyze internal and external environment by SWOT analysis method, and finally propose new management strategies.