The purpose of the article is to present the results of the study of the scientific library users’ information needs, as one of the important and obligatory stages of thematic and typological acquisition plan – a fundamental document in the activities of any library, defining the boundaries of the selection of publications to its document collections, updating. For to study current and future information needs of users of the Central Scientific Library of the Ural Branch of the Russian Academy of Sciences (CSL UB RAS) the complex approach was applied containing the method of content analysis of subject categories of publications of scientific organizations of UB RAS in the databases Web of Science and Scopus and subject headings of State Rubricator of Scientific and Technical Information indicated in the passports of research topics of scientific organizations of UB RAS in the Unified State Information System for Accounting for Research, Experimental and Technological Work. As a result of the study, 530 subject headings were selected for inclusion in the updated thematic and typological acquisition plan of CSL UB RAS. This plan is implemented in the form of a database with opportunities to quickly update, search and upload data on the current needs of users. That allows to use it for selecting documents for the library collections, subscribing to periodicals, preparing exhibitions and scientific events, creating information products and services, and research work of the library.
