Children have a naturally innate need to explore the world around them and themselves in that world. They learn by exploring, observing and questioning their surroundings and try to find meaning in everything they see around them. One of the basic needs of a child is movement. From the earliest childhood, children encounter various obstacles in life, which they successfully overcome through constant repetition. Their free play spontaneously turns into more complex motor movements that can be directed towards some guided kinesiology activity. Kinesiological activity is undoubtedly necessary for the normal functioning of children's bodies as well as for their development. The main subject of the research in this paper was to determine whether kinesiology activity affects the development of preschool children, that is, whether there are differences between the two groups, sports children and non-athletes, that can be attributed to exercise. For the purposes of the research, anthropometric measurements were taken of the children, while their motor skills were tested using five different motor tests that measured flexibility, balance, eye and hand speed, explosive leg strength and repetitive strength. The results were processed with discriminant analysis and t-test, and they showed a statistically significant difference in only one test, standing long jump, in favor of the group of athletes.