The article is aimed at studying the problem of measuring and evaluating teachers’ professional
competencies, which is related to updating the content of education and the need to ensure high-quality training for future teachers. Methodology and methods. As part of the study, a detailed analysis of regulatory documents and relevant scientific publications on this topic was carried out. Based on the professional standard of teachers, a diagnostic methodology has been developed aimed at assessing professional competencies. Results. The analysis showed that the majority of teachers demonstrate an average level of competence formation in such areas as pedagogical values, professional knowledge, pedagogical practice and professional development. At the same time, a high level of competence is distinguished by the following criteria: pedagogical orientation and responsibility; knowledge of the subject and teaching methods; awareness of the age characteristics of children and their motivation; skills in planning the educational process; as well as the ability to project personal professional growth and leadership development. Some problem areas requiring attention were also identified, including low proactivity and innovation in learning, difficulties in risk management, lack of knowledge in creating an inclusive educational environment, as well as weak teaching skills in multilingual classrooms and ensuring security in the digital space. Scientific novelty. This study helps to understand the specifics of the formation and measurement of professional competencies in the process of training future teachers. As a result
of the work, the author’s diagnostic method was developed and tested, which allows an objective assessment of the level of competence among students of pedagogical fields. Practical significance. The presented approach can be implemented in practical activities for monitoring and evaluating the quality of vocational education. The obtained results and conclusions of the study can become the basis for the development of educational programs and advanced training courses for teachers aimed at the effective development and strengthening of their professional competencies.