Kinesiological activity plays a big role in the child's development from the very beginning. It affects the overall development of the child, which is why it is important not to neglect exercise in preschool age. In the early stages of development, the child should be encouraged to move as much as possible, lead him to various activities that will influence the creation of a healthy way of life, improve body posture and handling objects, and thus encourage the child to the importance of kinesiology activity. Kinesiological activity has an important influence on the physical development and development of the child's motor skills, which are monitored through certain stages from birth to school. They indicate the children's abilities and interests, and help us when designing and implementing a successful activity that is in line with the children's capabilities. This final paper discusses physical activity and eating habits of preschool children. At the very beginning of the paper, the characteristics of the growth and development of preschool children, the impact of physical activity on the child's health, the development of the child's motor skills, and examples of activities that emphasize their importance and impact on the child are described. Also code activities are listed as a game with which children fill their free time as the basic activity of preschool children. In the continuation of the paper, the influence of adults in children's activities is described, as well as the role of adults who should give children a choice of various contents that they will enjoy and with which they will fill their free time with quality. Furthermore, the final paper consists of a description of the basic ingredients of food, the nutritional needs of a preschool child, a description of the menu and nutrition of a child in kindergarten, problems in nutrition, and the influence and role of adults in the child's nutrition is stated. At the end of the paper, the connection between children's activities and children's nutrition is described, and programs for encouraging the inclusion of children in kinesiology activities and preventing nutritional problems are also listed. Throughout the work, the emphasis is on the importance of two items, namely: the importance of encouraging children to engage in kinesiological activities as early as possible and the importance of proper child nutrition. The previously mentioned items will have a positive impact on the overall growth and development of the child, and will create a good foundation for continuing to play sports and for proper nutrition in the child's future.