The article is devoted to the study of the influence of the level of development of communicative tolerance on the effectiveness of the teaching and educational activity of primary and senior schoolteachers. In the article the concepts of psychophysiological and communicative tolerance are separated. The psychological content of communicative tolerance is revealed. It is established that teachers of primary and senior schools do not differ from each other on the level of development of communicative tolerance. When the experience of teachers grows, the level of development of communicative tolerance among teachers of both groups firstly increases, and then decreases. The peak of development of communicative tolerance among primary and senior school teachers falls on different periods of work. The level of development of communicative tolerance affects the effectiveness of educational activities of teachers of the first and second levels of training and does not affect the effectiveness of studying ones.