The theme of this work is the literature of Croatian composers for children's singing choirs. At the very beginning of the work, it is generally said about choral singing, choir types and singing voices and more about children's singing voices. An overview of the development phase of children's singing voices in early childhood and elementary school is provided. Further, the division of the children's choirs into the children's singing choirs of the younger school age and the children's singing choir of the older school age are further defined. For each group, insight was given to the basic characteristics of the choir and the ability to work with it. Further, a textbook for the teaching of the Music Culture is considered as one of the sources of songs that can serve as a repertoire in the classroom teaching and shows the division into songs according to origin and content, or functional purpose. Since Croatian composers still do not write enough for the children's singing choirs, the basic aim of the work is to respond to the needs of schoolchildren for the quality art literature of Croatian composers by briefly mentioning the biographies of selected Croatian composers who wrote about the children's singing choirs and analyzed their compositions for children singing choirs. Among the analyzed works, there are four collections of songs (Bruno Bjelinski: Kapljice, Ivan Brkanović: Deset popijevaka za djecu malu kao Željko, Pero Gotovac: cycle En ten tini, Ivo Lhotka-Kalinski: Nasmijani svijet), one singular piece (Željko Brkanović Bokeljski scherzo ) and a part of the songs from the collection of the given compositions for the 56th musical ceremony of Croatian youth (Ivan Josip Skender: Dohvati mi, tata, mjesec). Since all the songs in the collections have not been analyzed in the paper, the ones considered to provide the best view of the composer's musical language and style were chosen.