The relevance of the problem is determined by the general trends of pre-university education in the Russian Federation and the need to ensure the professional self-identification of school students in social and pedagogical professions, the creation of a network of psychological and pedagogical classes, which makes it essential to assess the teachers’ readiness to implement the ideas of pre-professional pedagogical training of school students. The purpose of the article is to develop and describe the level indicators for a teacher of pre-professional pedagogical training of school students. As the leading approach to the problem evaluation, a systemic approach was used, which made it possible to study the professional competence of a teacher within the context of the complex pre-professional training system. We have studied the professional competence of the teacher at the metasystemic level (following Belkina and Tsirulnikova’s classification, in which the subsystemic (intrapersonal) level, infrasystemic level (educational institutions), systemic level (social institutions) and metasystemic level (social and cultural pedagogical space) are distinguished in the system of pre-professional pedagogical training of school students). We regard teacher’s professional competence as a causal superstructure of universal pedagogical competencies acquired by students of psychological and pedagogical classes. As a result, the structure of the competence of the teacher of pre-professional pedagogical training of school students has been defined, competence levels have been identified, indicators for each level have been developed and described. The proposed materials fill to a certain extent the gaps existing in scientific studies in regards to the content and indicators of the competence of the teacher (trainer) of pre-professional pedagogical training; they may be applied in further scientific and methodological development of diagnostic tools and training programs for teachers of pre-professional education.