The article theoretically substantiates the model of training and formation of future teachers' of vocational education readiness to work in the information and educational environment based on the development of their digital competencies. Upon analyzing the types of activities of a future teacher with a master's degree that are specified in the professional standard and the field of application of their digital competencies, the research paper reveals their interconnection and presents the possibilities of developing these graduate competencies within the proposed educational and professional master's program. The program is elaborated upon studying the applied profile of the future teacher's digital competencies. The research methodology is based on the analysis of the digital competencies of the teacher and the logic of elaboration of the subject preparation of future masters for successful and effective professional activity in the context of information and digital activities. The content of the teacher’s basic digital competencies is analyzed in the study; a model of training and formation of a graduate's professional readiness to work in the information and digital environment based on the development of relevant competencies is proposed; the content of the educational and professional program "Computer Technologies in Management and Education" for the master's degree in the field of knowledge 01 Education/Pedagogy, specialty 015.39 Vocational Education (Digital Technologies) on the basis of the development of digital competencies of a future specialist within his/her professional training is suggested. The research demonstrates that it is necessary to include subjects aimed at developing digital competencies at a certain level in the content of their professional training in order to increase the effectiveness of teachers' activities in the modern conditions of informatization and digitalization of society and the formation of a virtual social and educational system.