In the article the process of forming future teacher ability to the interpersonal interaction in professional activity is described. Stages of the process of forming future teacher ability to the interpersonal interaction in the pedagogical activity are given. The results of diagnostics of formed future teachers’ ability to interpersonal interaction are given. The results have been achieved by means of various teaching situations (i.e. teaching situation «initiation»; teaching situation «integration»; tea-ching situation «self-actualization»). Hypothetical assumption that future teacher ability to interpersonal interaction in professional activity can be formed by means of teaching situations has been proved. This article is of great interest for specialists working in sphere of education (teachers, postgraduate students, students of pedagogical institutions, etc).