In their daily educational work, educators use various musical activities that encourage children's speech development. Among the most important musical activities, many authors point out singing games, singing a song (or repeating a song), working a counter (or repeating a counter), actively listening to music, encouraging children's creativity, and playing percussion instruments. Given that numerous studies have confirmed the positive influence of music on the development of children's speech, this paper focuses on exactly that. The paper is divided into several chapters, among which it is emphasized how speech develops in children, what is the influence of music on the development of speech expression, which forms of musical activities are used in working with children. The greatest emphasis in this paper is placed on the research conducted on a sample of 49 educators. The aim of the research is to determine whether the implementation of musical activities in educational work affects the development of children's speech and which musical activities are most often implemented in work with children. The research was conducted through an online questionnaire created using a Google form. The results of the research showed that the majority of respondents believe that conducting musical activities has a positive effect on children's speech development, that children love musical activities, and the most common form of musical activities that educators use in their work is listening to music and singing songs. Also, more than half of the respondents said that musical activities are not sufficiently represented in their daily work, which indicates that there is a need for additional training of educators in order to develop awareness of the importance of conducting musical activities.