This research was conducted in order to discuss one of modern supervision approaches and its viewpoints and explain this: peer coaching. This article describes the background, components, process, characteristics, and benefits of peer coaching. In this process, it has been more important which types of supervision have been chosen: traditional or modern. Researches have showed that while traditional supervision approaches have affected teachers’ negatively modern supervision approaches have encouraged teachers to work more. So, it has been an object of interest what peer coaching is, what differences and purposes have been and how it works. In this study, content analysis has been used on the nature of peer coaching and for this purpose, books and articles which are related to peer coaching have been scrutinized and the terms “peer coaching” have been tried to explain in all details. Definitions and other aspects of peer coaching have been discussed by literature related to peer coaching. According to literature, in this study, it can be said that peer coaching is a modern approach and teachers have asked for supervisor to use such modern approaches. Analyzing the literature, it can be said that peer coaching which is a modern supervision approach, has been thought more humane and more positive by teachers. It has overcome the bias of “supervision” and it has given a giant comfort not only organizations but also supervision mechanism and supervisor-teacher.