Background. Today, the necessity of studying the ethics of sport in the world of sports is obvious in national and international dimensions, especially given that in contemporary sport unfortunately ethical standards is less considered in the sports fields and is going to be weaker every day. Objectives. The current study aimed at investigating the effect of moral orientation on the performance of wrestlers in Iran by explaining the model and providing a strategy. Methods. The statistical population of the study included wrestlers participating in Iranian national Greco-Roman and freestyle (adults, youth, adolescents), Alich and Grapling (men and women), and Pahlavani (N = 220) wrestling teams. The current field study with descriptive-correlational design was specifically conducted based on structural equation modeling (SEM), relied on covariance. To collect data, questionnaire of moral orientation in physical education developed by Miltiadis in 2010 and the individual performance scale developed by Koopmans (2014) were used. Results. The results showed that moral orientation had a positive and significant effect (r = 0.404, p = 0.001) on performance. Also, the components of deontological ethics, Teological ethics, and civil liability had a significant effect on the level of performance. Also, the path analysis model showed a positive and significant relationship between moral orientation (t-value = 6.04, r = 0.52). Conclusion. Finally, it is concluded that moral orientation as one of the important criteria in the field of wrestling can have a significant effect on the performance of wrestlers and leads to an increase in their performance.