Background and Aim: Nowadays, to evaluate the physical and health growth of children, the measurements such as height and weight are used all around the world, due to the simplicity of these measurements. This study was performed to provide the curves of weight and height of 0-2 year's old children in Jahrom, Southeastern Iran.Materials and Methods: In a prospective study, 597 children born in Jahrom entered our study from April 2001 to December 2002. The height and weight of these children were recorded 18 times from one month to two years of age. In order to fit appropriate models for infant growth, HRY method was used to estimate age related smoothed centiles. This method was implemented for the World Health Organization as GROSTAT computer package.Results: The mean weights of male newborns, except one month age, were more than female ones. Before two months of age and among two years olds, there was no significant difference between the weight of male and female newborns. The mean height of male newborns, except in one month of age, was more than females. No more than cubic polynomials were needed to fit height-for-age and weight-for-age smoothly for infants. The height of male and female newborns showed an increase by age up to two years. The weight of male and female newborns also increased by age but the speed of increase to six months was more than that of six months to two years of age.Conclusion: The results showed that all heights and weights of less than two years old children in Jahrom were lower than NCHS, providing and establishment of a standard curve for this region seems necessary. If NCHS measurements are used, some children may be considered thinner or shorter for no reason.