The new variety of Luzhong mutton sheep was bred by Jinan Laiwu Yitai Agriculture and Animal Husbandry Technology Co., Ltd. in conjunction with China Academy of Agricultural Sciences, Shandong Academy of Agricultural Sciences, Shandong Agricultural University and other units 15. South African white-headed Dorper sheep was used as the male parent and Hu sheep as the female parent. Taking advantage of the germplasm characteristics of Dupo mutton with good production performance and high reproductive rate of Hu sheep, conventional breeding and FecB molecular genetic marker-assisted selection technology were adopted, through cross improvement, cross fixation and subculture. A new breed of mutton sheep suitable for producing high-quality and high-grade mutton was bred, which passed the on-site preliminary examination of the National Committee of Livestock and Poultry Genetic Resources on 20191.