Under the medium nutrition level, when Neijiang pig is used as the male parent and Xinhuai pig is used as the female parent, the weight of the hybrid pig can reach 90 kg at the age of 6 months, and the daily gain of 2-6 months is 560 grams. With Duroc boar as male parent and Xinhuai sow as female parent, the daily weight gain of the three breeds of hybrid pigs is 590-700g. The slaughter rate of 90kg is over 72%, the proportion of legs and hips is 27%, and the lean meat rate of carcass is over 50%.