2. Customers are different. The main service objects of university libraries are students and faculty. In addition to the basic characteristics of readers in public libraries, readers in university libraries also have their own characteristics, that is, imparting and learning professional knowledge. Public libraries serve a wide range of readers, including readers of various occupations, ages and education levels.

3. The service items are different. It is precisely because of the different service purposes that the service items provided by university libraries and public libraries are also different. In addition to traditional book lending, university libraries also provide services such as reference service, novelty retrieval and subject librarian to meet the needs of readers for scientific research and academic exchange. Especially with the application of information technology, university libraries provide professional services such as online search and download, resource discovery and knowledge management, but rarely provide services such as bookstores, calligraphy, entertainment or catering. Considering the needs of readers, especially those of the elderly and children, public libraries provide lectures, consultations and exhibitions on early childhood education, health care for the elderly and popular science knowledge. It also provides services such as book mailing, child care, first aid for the elderly, and catering.

4. Access to services is different. The service object of university library is registered students and faculty, and the self-service mode of "one card" is adopted. Students and faculty readers have a campus "all-in-one card" that allows them to eat, seek medical treatment, borrow books and pay fees. Readers enter the library with the card and are familiar with the borrowing equipment and process after special training. With one card, readers can borrow and return books, reserve seats and print and copy books by themselves. Public libraries serve all citizens, and have achieved barrier-free and zero-threshold access, and they can enjoy services with their ID cards. The personalized needs of readers are not very strong, and the corresponding service procedures are relatively consistent.

5. The allocation of book resources is different. The allocation of university library resources, both in content and quantity, is based on the subject characteristics of universities. In terms of content, resources covering all disciplines in the school are allocated, and there are no disciplines that are basically not allocated or allocated in small quantities. For example, there are few materials on medicine, agriculture, forestry and military affairs in normal universities, and relatively few materials on literature, history and philosophy in science and engineering universities, which pay more attention to the purchase of database resources. In terms of quantity, the number of copies of a book will generally not exceed three. Considering the different educational levels of readers, the books allocated by public libraries tend to be popular books such as literature, art and popular science, and the number of copies is large.

6. Different sources of funds.

7. The layout of buildings is different.