(1988), "Competing Technologies: an Overview", In: Dosi, G., Freeman, C., Nelson, R., Silverberg, G. According to this case study, it would be necessary for Korea to pursue systematic training of human resources, active response to a social acceptance and reaction, establishment of specific plan for technical demonstration, long-term policy suggestion, and active promotion of constant interaction between stakeholders. In addition, we conducted a case analysis on policy for Korean fourth generation nuclear energy technology. According to our study, the factors that influence on a transition of nuclear energy technology are a policy-induced market for technical application and demonstration, stable and long-term resource allocation, constant interaction among stakeholders of innovation, accumulation of skill and know-how for an entire system. This study could provide some policy implications for maintaining the sustainable competitiveness of the fourth generation nuclear energy technology in Korea. We also analyzed a present status of Korean policy on nuclear energy technology and identified some implications for a successful settlement of the fourth generation nuclear energy technology. We understood that the main issue may be a transition of fourth generation nuclear energy technology. In this study, we conducted an in-depth literature review of the innovation characteristics of nuclear technology.