In order to rescue and preserve valuable documents, inherit and carry forward traditional excellent culture, the NLC has carried out Chinese Ancient Books Preservation Plan and Minguo Documents Preservation and Conservation Programme successively.

The Chinese Ancient Books Preservation Plan is the first documents preservation project undertaken by the central government in Chinese history. The NLC, as China National Center for Preservation & Conservation of Ancient Books, is responsible for carrying out the project. According to the principle of "preservation with timely rescue; utilization under strict control", the Chinese Ancient Books Preservation Plan has made important achievements since it was initiated in 2007: carrying out ancient books survey and registration in the country; establishing National Directory of Precious Ancient Books, realizing national management and preservation of ancient books at different levels; nominating "National Key Ancient Books Preservation and Conservation Institutions", improving storage environment of ancient books; establishing multi-level talents cultivation system, cultivating a group of high-level professionals on ancient books preservation; developing ancient books preservation standards and specifications, quickening the scientization and normalization progress of ancient books preservation; rescuing and restoring damaged ancient books; strengthening ancient books collation, publication, research and utilization, playing their important roles of inheriting traditional excellent culture. In addition, China Ancient Books Preservation and Conservation Association is established, which strengthens the cooperation among ancient books preservation community and improves ancient books preservation system.

Minguo Documents Preservation and Conservation Programme was initiated by the NLC in joint with documents collection institutions in nationwide in 2012. With the participation of libraries in the nationwide, general survey of Minguo documents is gradually implemented; overseas documents collection has made substantial progress; Minguo documents collation and publication have made important achievements, forming a series of documents, such as series periodicals on Japanese war criminals' trials, Anti-Japanese War documents series, Minguo documents series, and so on, which satisfy the social demands and serve national overall strategy.