In this master’s thesis I aim to give a general overview of the language and motor development in early and preschool-age children and explain their relationship.Child development is a complex process since it involves socioemotional, cognitive, physical, language and motor development. It is important to have knowledge of various development stages so one can act in accordance with them and create a stimulating environment for a child. Language and speech development, motor development and neuroscientific insights into the relationship between language and speech development and motor development are discussed in five chapters of this thesis. The second chapter deals with the language development through a sequence of stages: prenatal, preverbal and preschool stage. The third chapter deals with the motor development of the early and preschool-age children. In addition to that, this chapter also describes motor skills. The next part of this thesis explores the relationship motor and language development. Gross and fine motor skills, in addition to oralmotor skills, are studied in detail in this chapter, since they extremely important when studying the relationship between motor and language development. Furthermore, in order to understand the connection between the two aforementioned aspects of development, one must know the facts about the brain and its development. It is then possible to observe the correlation between language and motor development. Neuroscientific findings of the relationship between language and motor development are presented in the fourth chapter. This thesis, being an overview of the two aforementioned aspects of child development, was written bearing in mind the needs of educators, and is presented in the context of the educational work in preschool institutions. In addition to educators, this work can help others working in children care and education to improve overall child development by providing them with appropriate stimuli and guiding them during their growth and development.