Preserve human cultural heritage. The appearance of library is the need of preserving human cultural heritage. With the library, the experience, culture and knowledge gained by human social practice can be systematically preserved and handed down, which has become a valuable cultural heritage and spiritual wealth of human beings today.
Develop social education. In modern times, the emergence of large-scale capitalist industries requires workers to have more labor knowledge and skills, so that libraries can really enter the common people and undertake the task of educating workers in scientific knowledge and culture. In modern society, the library has become the base of continuing education and lifelong education, and has undertaken more educational functions.
Pass on scientific information. Transmitting scientific information is an important function of modern libraries. Rich, systematic and comprehensive library information materials have become the material conditions for libraries to engage in scientific information dissemination. In the information society, the scientific information function of the library will be strengthened.
Develop intellectual resources. The books and materials collected in the library are a kind of intellectual resources accumulated by human beings for a long time. The processing of these resources by the library is the development of this kind of intellectual resources. At the same time, the library provides these books for use, which is to develop the intellectual resources of library users. In other words, the library undertakes the function of cultivating talents.
Provide cultural entertainment. The service of the library meets the social demand for culture and entertainment, enriches and enlivens people's cultural life and plays an indelible role in the construction of spiritual civilization.
The library is a scientific, cultural, educational and scientific research institution specialized in collecting, sorting, preserving, disseminating and utilizing documents. Literature is the material basis for the library to carry out all its work.