The development of the library depends on the financial and material support provided by the society; The level of economic development largely determines people's education level and social reading ability; The activity of economic life determines its dependence on information exchange system.

(2) Industrial Revolution and the development of education.

Industrial production puts forward higher requirements for the cultural quality of workers; With the rise of mass education, the population with reading ability has increased rapidly; With the emergence of cities, the population is relatively concentrated, and the demand for centralized use of documents is increasing.

(3) the development of science and technology.

Determines the information needs of society; It determines the growth rate of knowledge and literature; It determines the quality and type of document carrier; It determines the means of knowledge information storage, transmission and utilization.

(4) State support and protection: legal protection and financial support.

(5) International library exchange: About IFLA library associations and institutions of the International Federation.