Sanyuan pig ternary hybrid pig is a hybrid fattening pig which is made by crossing three pig breeds according to the combination order obtained from the hybrid combination test, and also becomes a thin pig. Because of its fast growth (high daily gain), strong disease resistance, strong vitality, good feed conversion rate (that is, less feed consumption and more meat gain) and high lean meat rate, ternary hybrid pigs are welcomed by pig farmers and loved by consumers.