The National Central Library is the sole national library of Taiwan. Its mission is to acquire, catalog, and preserve national publications for government, research and general public use. The Rare Books Collection is one of the leading collections of Chinese antique books and manuscripts in the world. The library also assists research, sponsors educational activities, promotes librarianship, carries out international exchange activities, and strengthens cooperation between domestic and foreign libraries. The library also supports Sinological research through the affiliated Center for Chinese Studies (CCS). As a research library, the NCL encourages staff members to conduct research in specialized fields. The NCL also cooperates with publishers and other libraries to develop its role as a leading center for knowledge and information resources and services in Taiwan.
Following a revision to its organic law on January 31, 1996, the NCL was administratively reorganized into the following departments: Director-general's Office, Acquisitions Division, Cataloging Division, Reader Services Division, Reference Services Division, Special Collection Division, Information Division, Guidance Division, Research Division, ISBN Center, Bibliographic Information Center, Sinology Research Center, International Publication Exchange Department, General Affair Division, Accounting Office, Personnel Office, Civil Service Ethics Office.