Objective. The article is devoted to the study of the role of academic libraries in the advancing of the ecosystem of open science by foreign and domestic authors of the university community. Methods. The following general scientific methods were used in the research: generalization, analysis, and systematic approach. Results. The basis of the promotion of open science is open data and open access, which forms an Open Ecosystem of Scientific Research. This requires the transformation of academic libraries of Ukraine, in particular university libraries, with a change in qualification level of library specialists and technical personnel to assist in the development of resource and information innovations of libraries when using various PIDs (Persistent identifiers). Conclusions. For the scientific community of Ukraine, the Strategy of Open Science is being formed, the implementation and promotion of which will largely depend on the experience of specialists of academic libraries with the support of the State Scientific and Technical Library of Ukraine (SSTL of Ukraine). The Ministry of Education and Science of Ukraine (MES of Ukraine) prioritizes the use of international experience in promoting open data and open science, where academic libraries play a leading role.