The brain drain can be defined as a type of social phenomenon or problem which has, in the reality of process of national development of developing countries, negative consequences and desirable outcomes in some conditions. In principle, in order to achieve a pattern of advancement, the Iranian society needs to train, educate, and employ experts in various aspects of the development where the internal talent reinforcement and bridging intellectual and material gaps are the necessity of advancement. Accordingly, identifying grounds, reasons, and consequences of the brain drain phenomenon requires further explanation and investigation. So far, wide ranges of studies have been conducted in regard to Iranian brain drain. This article, through the application of the qualitative meta-analysis method, investigates describes and evaluates 45 cases of produced scientific articles found in four data bases in Iran since 2001 in terms of questions, hypotheses, objectives, and outcomes. It seems that the necessity and the usage of this meta-analysis can be effective to monitor the country’s scientific community problems and also to provide appropriate scientific guidelines in legislative and executive aspects. Finally, this article provides a conclusion, the sociological analysis of Iranian brain drain, and the solutions of lessening the issue.