The article reveals the peculiarities of the formation of future music teachers' competence in working with children's choirs. It is emphasized that the formation of future professionals' competence is an essential condition for the development of the musical culture of the younger generation, children's interest in the traditions of the musical culture of the Ukrainian people's creative music, and vocal and choral work in children's choir promotes musical abilities and emotional sphere. It is proven that the professional training of future music teachers to work with children's school choirs should be creative, taking into account individual capabilities, music theory, and performance training of students. It is revealed that the future music teacher must be prepared for various types and forms of creative vocal and choral work with children of different school ages, in which the future music teacher will perform as an educational institution, accompanist, accompanist, and illustrator. It is emphasized that the modern school needs new forms and methods in the organization of musical activity for schoolchildren, which will promote the development of musical culture and interest of pupils in musical creativity.