“A native sings when he addresses unknown forces, a mother sings when she puts her child to sleep, the worker sings when he works, the peasant in the field sings and the child in his games, the old man sings when the sun shines, sings the one who loves and who hopes. And only if humanity were banned from singing, we would understand that it is the need of human life." Rossa Agazzi The aim of this paper is to investigate whether the music, that is, the musical activities carried out in kindergarten have impact on speech development in children of nursery age. The research was conducted in kindergarten "Jabuka" in Zagreb in an older nursery group in which there are nineteen children at the age of two. The research sought out to test the impact of the frequent use of musical activities to accelerate the development of the child's speech. It was wanted to point out how musical activities can enrich children's vocabulary and how important their application is in kindergarten, especially in children at the nursery age. The development of children's speech is a very complex and subtle process that starts from the moment of birth, and some scientists believe it begins as early as pregnancy. Speech is a social phenomenon and its development is possible only in the conditions of human environment. It has always been and remained the basic way of communication between people. Preconditions for its development are: good health, properly developed speech organs, orderly hearing, orderly intellectual development and stimulating environment. Young children learn language quickly and easily during development periods in which their cognitive abilities are still quite undeveloped. Family is the closest and most natural environment of the child and therefore it has the greatest role in the process of the child development, including speech. In addition to parents, an important role belongs to preschool institutions. Through a planned educational approach, educators contribute to the development of the child's speech. It is very important to talk to the child, listen to the child, read to him, sing... The paper emphasizes the positive effects of music, both on speech and on the whole body. The importance of the first musical games, nursery rhymes, rhythmical games, sound games is pointed out, as one of the best means of encouraging speech. Finger games are also mentioned, which are next to the nursery rhymes and rhythmical games, a powerful means of stimulating speech development.