Introduction: The aim of the present study was to investigate the effect of manipulating the motivational-mastery-climate on the level of physical literacy in autistic children.

Methods: The present study is a quasi-experimental study with a pre-test-post-test design. The statistical population of the present study included autistic children in Shiraz, aged 8-10 years. For this purpose, 40 people were selected using the accessible and purposive sampling method and after obtaining written consent, they were randomly assigned to one of two groups: motivational-mastery-climate and control. The instrument used in this study was the physical literacy scale. The implementation method was that first, the physical literacy pre-test was taken from the subjects. Then, the research intervention was implemented in the form of a motivational-mastery-climate and a recreational training program (Control) for 12 weeks, three days a week and 60 minutes. After the intervention, the physical literacy post-test was taken from the subjects again. Data were analyzed using the analysis of covariance statistical method.

Results: The results of this study showed that there was a significant difference in physical literacy between the effectiveness of the motivational-mastery-climate intervention compared to the control group (recreational training program); this difference was in favor of the motivational-mastery-climate intervention group (sig=0.001).

Conclusion: Therefore, due to the greater effectiveness of motivational-mastery-climate intervention, it is suggested to trainers and therapists to use this method to enrich the conditions of their training interventions.