Speech is a very important determinant in human life, which constantly develops throughout life. However, the beginning of the development of speech occurs in the earliest human age, and then throughout life, a person only builds and expands it. The most important period of speech development is in preschool age, when adults play a significant role in encouraging this development. Digital technology, affects many areas of life, including education, and have a big influence on the speech development of children of early preschool age. Due to the rapid development of technology, digital tools have changed children's lives and the way they learn, especially in the last ten years. The development of the digital era greatly affects the behavior and development of children, which is often a consequence of the use of digital technology. Although there are positive aspects, the development of digital technology also has negative impacts on children and their development. Parents of today's generation of digital natives face the challenges brought by the new digital age every day. Parents face the difficult task of striking a balance between allowing independent exploration of content and providing appropriate limits and supervision due to the time their children spend with digital technology and the many risks they may encounter in the process. As part of the diploma thesis, research was done on the topic The influence of digital technology on the development of speech and communication in children of early and preschool age. The results of the survey showed how much time children spend using digital technology, which technology they use most often, which content, and parents' views on the positive and negative effects of technology on the development of their children's speech and communication.