One of the main conditions for inclusive education is the professional competence of teachers. The professional competence of the teacher ensures the education, upbringing and development of children with disabilities. In the context of inclusive education, special attention should be paid to the training of teachers to work with children with disabilities. The peculiarity of the organization of educational and correctional work with children with developmental disabilities requires special training of a teacher who provides integrated education. The teacher of an educational institution must know the basics of correctional pedagogy and special psychology. They should also have a clear understanding of the peculiarities of the psychophysical development of children with disabilities, the methods and technologies of organizing the educational and rehabilitation process of such children. People who have not received special education cannot successfully work with children with developmental disabilities.