Object of study - training of primary school teachers; subject of research - pedagogical conditions of forming of pedagogical tolerance in the prosess of professional training of primary school teachers; the purpose of the study is grounding and experimental verification of pedagogical conditions that promote formation of tolerance in the prosess of professional training of primary school teachers; research methods: theoretical methods: analysis of philosophical, historical, educational, psychological and educational literature to determine the state of investigation of the studied problems; systematization of theoretical and experimental data to determine pedagogical conditions of formation of pedagogical teaching tolerance in the prosess of training of primary school teachers; theoretical modeling of pedagogical process of forming of tolerance of future primary school teachers allowed us to distinguish and theoretically justify pedagogical conditions and develop stages of forming of tolerance of primary school teachers in the prosess of professional training; empirical methods (survey, interview, conversation, observation, testing, individual interviews) are used for diagnosing the levels of tolerance of future primary school teachers; pedagogical experiment was organized to test the effectiveness of determined conditions of forming of tolerance of primary school teacher; methods of mathematical statistics are used for calculation of the results obtained during the study; scientific novelty of the results of the study is that, for the first time on the analysis of scientific works scientists who studied the problem of forming of tolerance of future primary school teachers in the prosess of professional training, singled out the main stages tolerance of future primary school teachers in the proses of professional training; grounded and experimentally tested pedagogical conditions that ensure the efficient formation of tolerance in the prosess of professional training of primary school teachers (preparedness of teaching staff to give knowledge about tolerance, creating of the tolerant environment; methodological support of self-education of tolerance in the prosses of training of future teachers, the usage of interactive methods and techniques in the prosses of training of primary school teachers; defined criteria (cognitive, emotional and sensual, communicative and activite, motivational and valueable) indicators (awareness, strength and completeness, mercy, kind-hartness, compassion, friendliness, the degree of manifestation, completeness, adequacy relative to emotions of other people, expressions of frequency, quality, practicability, initiative, independence, motivation for tolerant interaction with participants of communication, positive emotional and valueable attitude to different participants of communication, to their culture, nationality, beliefs, social groups, views, setting on the development of tolerance) and levels of pedagogical tolerance of future primary school teachers (high, enough, below average, poor); the essence of the concept of "teaching tolerance" as a future teacher.