Its functions are in line with UNESCO's regulations on the National Library: to collect complete German literature since the 20th century, to be responsible for the collection and long-term preservation of German and German publications since 19 13 and foreign publications related to Germany since 19 13, and to preserve the cultural heritage of German-speaking countries; The National Library of Germany has established good relations with publishing industry and booksellers. As the national bibliographic information center, clearly define the publication scope and new forms of bibliographic reception; And represent Germany in the activities of the international library community. To sum up:

1, German Documentation Center.

2. German Music Documentation Center.

3. National Bibliographic Center.

4. National Music Information Consulting Center.

5, the national library resource pool.