Physical activity is an integral part of life that we spend every day, through various activities. Namely, there are other forms of physical activity like as sports and recreational activities that we can carry out in different ways. For preschoolers, physical exercise is one of the most important incentives for growth and development. Therefore, it is necessary to provide children with sufficient movement, selected physical exercises and tailor-made exercise in order for the physical exercise to take place according to the children's abilities and in order to be effective. In this final work we discusses the physical activity of preschool children, what is its role, goal and tasks, how physical activity affects the characteristics of growth and development of preschool children. Namely, physical activity has a positive effect on human health, which is mentioned in the final work through the topic of the impact of physical activity on health. Motor skills are important for the efficiency of physical movement, and physical activity can influence the development and maintenance of motor skills. It is important to note that play is a type of physical activity, which is important for children for the development of physical abilities. Therefore, it is necessary to enable preschool children to play indoors or outdoors on a daily basic.