The purpose of this research was to assess the International Legislative Protection and Sustainability Development of Cultural Heritage Resources in Armed Conflicts. It was carried out in eastern province of Democratic Republic of Congo with the following objectives: To find out the impact of armed conflicts on sustainability of cultural heritage resources, To assess on international legislative protection and sustainability development of Eastern province of DRC, and to identify the challenges of cultural heritage resources management in Eastern DRC. This research is significant to the researcher himself, to the politician, and to the great lakes region. The research used purposive and random sampling techniques. Literature review was used to create a strong understanding of what other authors has talked about the concepts of Legislative, culture heritage, resources and Armed.On the challenges of cultural heritage resources management in Eastern DRC, the research revealed The twin challenges of governance for the DRC are to provide security for all of its citizens and to build democratic, transparent, and accountable institutions capable of managing its enormous resource wealth for the benefit of its entire population.