In recent years, many public libraries in Taiwan have been enforcing projects about building or transforming architectures’ space. There are many details at the beginning of a program, and a perfect program requires the discussion and communication between librarians and architects. In this paper, I arranged those complicated situation and proposed 12 problems which usually happened and 10 win-win strategies, hoping the two sides could complete a library building has both humanities and profession through communication, trust and well preparation.