Based on its geographical and climatic characteristics, Gang-won area is exposed to poor freezing environment such as many snow and freezing days, so several problems occur in the maintenance of lining and roads. Therefore, it is essential to develop a technology to reduce the freezing damage of road tunnel entrance and exit in cold region. In order to secure the quality and performance of the new technology and to improve the understanding of practitioners, it is necessary to establish construction guidelines and maintenance plans for continuous condition and performance management. In this study, to develop construction manual and maintenance manual, Delphi survey was conducted for experts in tunnel field to derive construction and maintenance indices. And its results will be used to develop a process for safety management and rehabilitation considering the characteristics of cold region.