1, Dalian Youth Library Association: a non-profit social organization composed of youth libraries and individual members in various districts and counties of Dalian. Its purpose is to strengthen the contact and cooperation among the youth libraries in the city, promote the development of youth libraries and improve the cultural quality and spiritual realm of young readers.

2. Dalian Library Association: It is a mass organization formed voluntarily by Dalian librarians. Its purpose is to promote the development of librarianship, improve the quality of librarians and give full play to the role of libraries in the construction of socialist two civilizations.