【Purpose/significance】Through quantitative research, analyze the status of library internet construction and existing problems, and make recommendations to further improve the library’s internet influence.【Methods/process】This paper uses AHP, Delphi, and link analysis method, to construct the evaluation model of Library Internet Influence,And 39 "985 project" university libraries are conducted an empirical study.【Result/conclusion】It is believed that the construction of the influence of the library network in our country has better construction of the website, the influence of the media network is increasing day by day, but the quality of the construction operation is uneven, the construction and operation of the three kinds of platforms are so different. It is proposed to build three platforms, focus on the operation from the media, strengthen publicity and promotion, service content first, establish new media awareness, strengthen communication and interaction,standardize the use of three platforms, dig deep into the media in the four aspects of the suggestion.