In this research, using one of the new research methods, namely, meta-analysis, the results of the Iranian studies on the role of self-efficacy in academic achievement was analyzed. To do so, 34, accomplished researches on the role of self-efficacy in academic achievement were gathered from Iran’s research centers and were chosen for meta-analysis. These researches were chosen for meta-analysis on the basis of research methodology parameters including questions, theories, statistical population, sampling, research method, and validity and reliability of the questionnaires. Statistical analysis was done using comprehensive meta-analysis software. Findings indicated that there is a positive meaningful correlation between the variables of self-efficacy and academic achievement.