<p>A set-theoretic model of the quality of the information resource of the automated system of information support of scientific research is presented. The formalization of the concept of the quality of the information resource is carried out, and the place and role of the developed model for the qualimetry of information resources are determined. The model is developed from the standpoint of the system approach and is presented by a hierarchical mathematical construction. The properties and their indicators are substantiated, adequately characterizing the suitability of the information resource for information support of scientific and technical activities.</p>