This study aims to explore the relationship between body weight, height and gross motor performance in early childhood. The measurement method uses internationally recognized standards for measuring children's weight and height. Gross motor performance is evaluated through a series of motor tests that include skills such as jumping, running, rolling a ball, and throwing. The results of the analysis show that the multiple linear regression value of weight and height presented at 23.6% is known to have a big influence on children's gross motor skills. Children with a higher body weight tend to have better gross motor skills. On the other hand, the relationship between height and gross motor performance did not show a significant correlation. This research provides important insight into the role of body weight in the development of gross motor skills in early childhood. The implications of these findings can be used as a basis for the development of better intervention programs in the development of motor skills in children.