Yuyou is the most powerful tribal leader in the three tribal alliances of ancient China. He invented metal smelting and was good at casting weapons. Therefore, later, Yuyou was called the god of war. In addition to casting weapons, metal smelting also greatly promoted farming. It is a very big leap in the productivity of primitive society, and now the Miao people generally regard Yuan You as their ancestors. In general, Yuan You is a historical figure worthy of respect and memory.