The purpose of this research is to investigate the effect of thinking styles and social problem solving skills on academic performance with the mediating role of academic enthusiasm. The current research is applied in terms of purpose and descriptive-correlational in terms of nature with path analysis approach. The statistical population of the research includes all 960 students of the 5th academic year of Diyali city, of which 288 were selected by cluster random sampling using Cochran's formula. To collect research data, four thinking styles questionnaires from Sternberg (1991), social problem solving questionnaire from Dzorilla et al. (2002), academic enthusiasm from Fredericks et al. (2004) and academic performance from Pham and Taylor (1999) were used. The face and content validity of the questionnaire was confirmed by experts and confirmed through factor analysis. The reliability of the tool was confirmed using Cronbach's alpha coefficient in a preliminary study for the questionnaire of thinking styles 0.92, social problem solving skills 0.89, academic enthusiasm 0.86 and academic performance 0.90. Data analysis was done using Pearson's correlation coefficient analysis and path analysis in SPSS and Lisrel statistical software. The results showed that the effect of thinking styles, social problem solving skills and academic enthusiasm have a positive and significant effect on the academic performance of students, it was also found that the mediating role of academic enthusiasm in the effect of thinking styles and social problem solving skills on positive academic performance And it is meaningful.