Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 42 11 2013 11 15 1200 6 Fatemeh Abdi 1. Students Research Committee, Shahid Beheshti University of Medical Sciences , Tehran, Iran. Masoumeh Simbar 2. Dept. of Reproductive Health, Faculty of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences , Tehran, Iran. 2015 10 15 Adolescence is an important stage of human life span, which crucial developmental processes occur. Since peers play a critical role in the psychosocial development of most adolescents, peer education is currently considered as a health promotion strategy in adolescents. Peer education is defined as a system of delivering knowledge that improves social learning and provides psychosocial support. As identifying the outcomes of different educational approaches will be beneficial in choosing the most effective programs for training adolescents, the present article reviewed the impact of the peer education approach on adolescents. In this review, databases such as PubMed, EMBASE, ISI, and Iranian databases, from 1999 to 2013, were searched using a number of keywords. Peer education is an effective tool for promoting healthy behaviors among adolescents. The development of this social process depends on the settings, context, and the values and expectations of the participants. Therefore, designing such programs requires proper preparation, training, supervision, and evaluation. https://ijph.tums.ac.ir/index.php/ijph/article/view/4366 https://ijph.tums.ac.ir/index.php/ijph/article/download/4366/4016