lt makes the processing and application of data become a part of all walks of life, when the age of big data arrived. Meanwhile, it proposes higher requirement of the librarian. Under the circumstance of big data, the role of librarian is not administrator of documents and books, but also data administrator, which should provide services for the users that including data filter, data organization, data digging and analysis, and the education of data attainment.
The author found, through Network survey method and firsthand experience,that the service mode and main functions of mobile APP in domestic university libraries are not fully used as it is in foreign university libraries and public libraries. The expansion and optimization scheme of mobile APP function is discussed to provide advice on the construction of university mobile library App.