Enterprise library refers to borrowing books from all libraries of some large enterprises, which generally refers to the collection of books and documents of enterprises and their management departments. There are professional libraries, science and technology libraries, trade union libraries, central libraries, document centers, libraries, reference rooms, etc. The affiliated institutions are factory-run, party-run, trade unions, information centers, science and technology centers, training centers, archives centers, research institutes, design institutes, information offices, factory-run primary and secondary schools, etc. Its service object is the employees of enterprises or departments, and the source of funds is part of the operating profit of enterprises as scientific research funds or administrative funds or employee welfare funds.