The present study was conducted with the aim of investigating the effect of eight weeks of ‎Spark program on physical self-concept and basic skills of overweight elementary school girls. The ‎statistical population of the study consisted of all overweight girls of Chadegan primary schools. ‎Among these, a sample of 30 people was selected using the available sampling method and ‎randomly divided into two control and experimental groups. The tools used in this research were ‎Marsh et al.'s short-form physical self-description scale (1998) and Ulrich's gross motor skills ‎development test - second edition (2000). For the intervention, the experimental group did the ‎SPARK exercise program (three 45-minute sessions per week) for 8 weeks, while the control group ‎only had regular school physical activity programs and did not do any regular physical activity. ‎Descriptive statistics (mean and standard deviation) were used to analyze the data, and covariance ‎analysis was used to test the hypotheses. The results showed that in the SPARK training group, skill ‎and fundamental abilities, physical self-concept and self-esteem increased significantly. Based on ‎the findings of the present research, it can be concluded that the SPARK program has the ability to ‎develop better and more positive attitude, appearance and general physical abilities in overweight ‎primary school girls.‎