The purpose of this work is to connect the age of children with the development and changes in morphological characteristics. It is of great importance to monitor the development trend of each child, that is, to determine how age affects changes in an individual's height and weight. Growth and development depend on many external and internal factors, which can be better understood by observing each child individually. The research was conducted in a kindergarten in Sesvete with 90 children aged 3 to 6 years. Descriptive statistics and regression analysis were performed on the obtained data. Based on the results obtained in this research, it can be concluded that the results showed that age has a statistically significant influence on anthropometric measurements of height and weight. The purpose of this research was to inform educators and encourage parents to better understand the importance of physical activity and healthy nutrition. It is necessary to take precautionary measures in time so that preschool institutions and parents better understand all the factors that affect the child's health and what these needs are in order for them to grow up healthy.