Buffalo buffalo festival (Ba Na called x'trǎng, Cor people called xa-piêu, Gia Lai people call it autumn, Lach people call saroppu) is a festival for spiritual purposes or The people who have presided over the establishment of the village, celebrating the victory, celebrating harvests or celebrating other important events. This is one of the traditional festivals of the Tay Nguyen ethnic groups in Vietnam. Buffalo will be sacrificed to pray for the village healthy, warm, to celebrate the day or to celebrate the victory.