The aim of this final paper is related to identifying differences in antropometric characteristics between girls and boys of pre-school age and in relation to that, research was provided to conclude if there are any differences, and if they really are, in which antropometric characteristics we can see them. Preschool time is a period which is very important for development and in that period, the big role has environment, stimulans and motivation to properly guide the child. Physical activity is minimezed, bad habits are adopted in the early age and because of that it is very important to conduct anthropometric measurements so we could detect and affect improper growth and development. Anthropometric charachteristics are divided into four dimensions and influenced by both endogenous and exogenous factors. Except antropometric characteristics, the secondary goal of this reasearch is to determine the state of nutrition by body mass index and that is, how many children have normal body weight, malnutrition, overweight and obesity. Previous studies show that there is more and more children who are overweight and obese, and if nothing changes, the number will increase in the future. The research was provided in purpose of expanding the knowledge of antropometric characteristics and the importance of tracking and reacting in time which should be necessary from both parents and preschool teachers. Results of this research will confirm the results of previous research on the same or similar basis. In this study are presented theoretical and methodoligal starting points that were used during the research and also previous studies about antropometric characteristics. Furthermore, the study which was provided in March, in the kindergarden 'Bedekovčina' is compared with the others studies. The results have been shown to be consistent with many other studies, and that is that the differences in antropometric characteristics by sex are not significantly visible.