The purpose of the article is to substantiate the relevance, prerequisites and methodological foundations for creating an electronic library of scientific and technical information in the State Scientific and Technical Library of Ukraine (SSTL). The research methodology is based on a combination of general scientific methods of analysis, synthesis and forecasting, as well as on the use of systemic, informational, structural and functional, comparative, and terminological approaches. The scientific novelty of the study lies in the further development of views on the creation and functioning of an electronic scientific and technical library in the context of the implementation of the principles of open science and open access to scientific and informational resources. Conclusions. The development and implementation of the project on the creation of an electronic scientific and technical information library in the SSTL of Ukraine will contribute to solving a number of important issues, in particular: optimization and expansion of remote access of domestic and foreign users to the documents of the library collection, implementation of virtual reconstruction of scattered collections and funds; informational support for scientific, educational, and production projects; providing access to unique materials – rare books, archival documents, including their special types – patent, regulatory and technical, unpublished; preservation of originals that are at risk of disappearance or damage. Key words: State Scientific and Technical Library (SSTL) of Ukraine, electronic information resources, electronic library, electronic catalogue, full-text databases, scientific and technical information, open access, open science.