Introduction. The article highlights the importance of further informatization of the system of higher education, considers the main approaches to the definition of the concept “electronic educational environment (EEE) of higher education institution”. Purpose of the article.To reveal and characterize the electronic educational environment of higher education institution in accordance with the requirements of the Federal State Educational Standards of Higher Education. Materials and methods. The research materi-als were normative documents, scientific articles and thesis works regarding the issues of introducing and applying the term “electronic educational environment”. In the process of theoretical analysis, methods of comparison, classification, systema-tization and generalization were used. Results of the research. It was concluded that the requirements of the State to the informatization of education, including higher education, are quite serious. At the same time, the existing traditional educa-tional system with fragmented and unsystematized application of EEE means does not cope with the imposed modern requirements. The results of the analysis, the revealed peculiarities and requirements were taken into account in the design and development of the electronic educational environment at the Chair of Applied Mathematics and Computer Science at the Mari State University. Conclusion. The peculiarity of the developed electronic educational environment is the arrangement of the learning process in the form of non-linear interaction of its subjects, as well as providing multivariate ways of learning development, which implies a change in the model of the educational process from linear to nonlinear: the implementation of flexible individual trajectories on the basis of a differentiated approach. Such adaptation of the learning process to the personal characteristics of students contributes to the creation of favorable conditions that allow to realise the opportunities of each student in accordance with his individual abilities and psychological and physiological qualities; it also contributes to personal intellectual fulfilment.