Recently, with achieved US$ 500 Billion international cumulative construction order, the Korean government presented overseas construction industry visions for international orders of US$ 100 B and entering the top five countries in global construction market. Also, Korean companies are developing strategies for expansion of international markets especially focused on company competitiveness as a target market. Therefore, this study aims to analysis of competitiveness for the Cambodian building construction market, which presents abundant development potential. The results of IPA result were as follows; construction order information and supply chain management are needed for public tender projects and F/S, global project financing, and supplier relationship management are needed for construction investment projects. However, this work is still considered to provide the basic data that can help Korean construction companies who plan to enter the Cambodian building construction market strengthen their medium and long-term capabilities.