Jinfeng pig is a new breed of pig that has been selected for breeding by using Jinshan Fengjing pigs (a population of Taihu pigs), Landrace pigs and Pietrain pigs. Sows have a pure black color, good maternality, and more calving; the color of the product is pure white, high lean meat, excellent meat quality, and fast growth. Breeding proves that Jinfeng pig not only adapts to the intensive breeding of large-scale pig farms, but also is suitable for traditional feeding of small-scale pig farms and free-range farming for individual farmers. First, body shape: Jinfeng sow shape is moderate, the average weight of adult sows 158.64 kilograms, the body back hair black and sparse, trunk skin light purple color, smooth surface, forehead with a white meteor-like pattern, ear drooping, back flat Straight, slightly sagging abdomen, plump body, breast hair up to 7-8 pairs of nipples; commercial Jinfeng pig hair white, a little black spots or black spots on the buttocks, lighter head, small ears, straight back, full hindquarters, Strong limbs. Second, estrus breeding. In the intensively reared individual fields, the Jinfeng sow has an extremely obvious estrus performance. The weight of 80 kg can be matched at the age of 8 months. The average age of the first child at the delivery day is 377.81 days. Within 8 days after weaning, Jinfeng sow accounted for 82.23% of the estrus, and the average interval between weaning and mating was 7.36 days. Breeding is easy, when using natural mating, the rate of one breeding fetus is 86.49%, the rate of compounding fetus is 62.50%, and the total conception rate is 94.63%. Third, the act of giving birth. The prenatal performance of the Jinfeng sow is also very obvious, and the production process is relatively short, with an average of 96.13 minutes throughout the calving process. The number of pupas produced was 10.68, 11.87, and 12.40 respectively. The number of live pupa was 10.19, 11.37, and 11.87 respectively. The average birth weight was 1.202 kilograms, and each sow averaged 2.038 tires per year. Fourth, breast-feeding performance. Jinfeng sow has a good lactating capacity. It has a weight of 63.04 kilograms and a daily weight gain of 2.572 kilograms. The number of weaned heads at the age of 35 days was 10.68, average weight was 86.62 kilograms, and the average weight per head was 8.11 kilograms, with obvious heterosis.