Since mainland China's adoption of economic reform and open door policies in 1979, Taiwan, mainland China, Hong Kong, and Macao have gradually formed an informal system of economic cooperation. This economic cooperation system is non political and therefore can avoid political interference thus the cultural exchanges that take place within the system, particularly in the cooperation and sharing of library resources and information, should not only facilitate the library and information science profession on a mutually beneficiary basis across the Taiwan Strait, but also consolidate a foundation for future development of a stable cross-striat relations. Consequently, it should also further promote the economic integration within this system. This paper elaborates the exchanges of library and information science across the Taiwan Strait. The author analyzes the pattern of participation by both Taiwan and mainland China in the "International Federation of Library Association" and suggests this cooperation can be a paradigm for Taiwan's further endeavors to join other international organizations.