Sheep back, Mongolian called [Ucha] or [Xusi], is a traditional dish of Mongolian herdsmen in Erdos, Inner Mongolia, when they entertain friends and relatives.nSheep back is not only a food, but also a very traditional etiquette. At the grand Ordos wedding, the feast is even more inseparable from the sheep's back. It also sings "The Whole Sheep": "Premier guests are on, please allow me to be fat and tender." The whole sheep is offered, its broad back, like the vast universe, its stout limbs are like the four major continents..." Originally, when cooking, the whole sheep was dissected into seven pieces: four legs, With the tail back (the sheep back is named). The white water is cooked, placed in a fixed position, then disassembled into pieces, and the world is shared, then everyone shares the delicious sheep's back.