The report presents the implementation of blended learning at the State Higher Education Institution “University of Education Management” of the National Academy of Educational Sciences of Ukraine caused by the priority of forming an innovative environment for pre-service and in-service training. The focus is on introducing online technologies, fundamental changes in approaches to the organization of education at the University with appropriate methodological approaches and models. The following components of the organization of the educational process are presented: organizational (regulatory framework, technological support, material and technical base, creation of digital workplaces, mastering digital technologies by lecturers and students, mastering necessary competencies by academic staff, content creation for training programs); methodical (flipped classroom model, use of online courses, educational and methodical support, author’s courses, academic mobility); technological (learning platforms, digital tools). Pre-service and in-service training under the blended learning in the system of formal, non-formal, and informal education by creating a unified educational and digital ecosystem is analyzed. The organization of in-service training at the “Ukrainian Open University” based on the cloud technologies in the non-formal education system is described. The results of monitoring key indicators of the educational environment are presented.