The urgency of the problem of creating favorable environmental conditions for the formation of professional competence of teachers is due to the need of the developing society of modern Kyrgyzstan for educated, moral, enterprising people who can independently make responsible decisions, be mobile, dynamic, constructive specialists, and have a developed sense of responsibility for the fate of the country. The quality of education, including additional education, guarantees the competitiveness of the state. The purpose of this article is to present the results of the study of the role of the collaborative environment in the formation of professional competence of teachers of additional education. On the example of the activity of the republican educational and methodological center of aesthetic education “Balazhan”, it is shown how the introduction of the basics of collaboration in the pedagogical process contributes to the formation of the professional competence of the teacher of additional education. The author on the basis of a large-scale study, which was attended by four hundred ninety-seven children and twenty-five teachers of additional education, presented as formed the professional competence enable the teacher to create in the educational process of effective collaborative environment conducive to the intellectual and creative potential of students; allow to understand, appreciate their work, to understand their role as a helper, Advisor, mentor. The article reveals how the creation of the collaborative environment, the activity of the teacher of additional education for its formation and development, the interaction of the teacher with the social partners, as members of a holistic educational process and the features of the collaborative environment to work with children contribute to the formation of professional competence of the teacher of additional education. The author emphasizes that a pedagogically well-organized collaborative educational environment in the conditions of extracurricular additional education is one of the effective mechanisms for the formation of a socially successful personality