In order to give enhancement to the protection performance of modern fighting armor vehicle, various kinds of reactive armor (RA) systems have been developed by leading defence product manufacturers. There have been strong domestic demands for additional protection measures against hostile anti-armor munitions. Thus, efforts have been given to investigation upon authentic reactive armor system especially for the Korean next generation main battle tank, K2 Black Panther. However, in order to reduce damages to the chasis upon explosion of RA, development of non-energetic and advanced reactive armor system has been focused. For instance, the United States and Israel have developed the Hybrid Reactive Armor to install onto the Bradley Infantry Fighting Vehicle. Also, there have been studies and investigations for Korean non-energetic reactive armor system recently. In this paper, the current status of next generation RA and its research activities has been reviewed and discussed to provide right direction of future research and development programs.