This study reviewed eight studies selected from the ERIC and Education Complete databases covering the years 1997 through 2007. The goals of this study were to identify similarities and differences of peer coaching and to examine its feasibility and challenges in preservice teacher education. The four similarities among the studies identified are (i) study participants, (ii) coaching relationships, (iii) coaching duration, and (iv) coaching strategies. The differences identified were in relation to the following four areas: (i) the purposes of peer coaching, (ii) the nature of the field-based experiences of the programmes, (iii) the training for peer coaching, and (iv) the effects of peer coaching. Peer coaching appears to possess unique advantages and have much value for preservice teacher education. How barriers to the comprehensive recognition of peer coaching could be eliminated in preservice teacher education is also discussed.