In this study, a computational model of trajectory of hypersonic glide vehicle(HGV) is presented. Using the model, performance of short range HGV applicable to korean theater of operation is analyzed. There is a possibility that short range HGV could break or evade anti-ballistic missile defense system due to its maneuverability and low gliding altitude. However, HGV is not utterly immune to intercept because its speed is comparable with ballistic missiles. Characteristics of short-range HGV and North Korea’s traditional strategies on ballistic missiles imply that North Korea could exploit HGV to threat or attack Republic of Korea in the future. To build response capabilities against HGV threat, Republic of Korea needs to enhance its WMD Response System capabilities such as space-based missile detection.