With developments and innovations in technology, new materials and methods have enabled architects and engineers to plan and construct large-scale facilities. However, these developments may also result in serious problems which include budget overruns, completion delays and distress on the part of the facility owner. To avoid these problems, many types of delivery systems which contain force account system, design-bid-build system, design-build system, Construction Management at Risk (CMAR) system and so on have been employed in the world construction market. But every system could not be a complete one because of its own inherit limit. In the midst of the systems, CMAR system is the finally changed delivery one among the systems and has many merits to construct and manage the facilities. In Korea, CMAR system had been introduced conceptually, but it have not been applied to public construction market yet. Therefore, to promote the application of CMAR system in the Korean public construction market, a review of construction delivery systems was conducted with a focus on CMAR systems which were descriptively analyzed. It is suggested that specialized construction management services, streamlined bidding and contracting regulations, and reasonable allotment of contract risk are essential tools for successful construction projects.