Abstract: Shanning 23 was bred by sexual hybridization pedigree method with Ludou 12 as female parent and Huadoujianye as male parent. It was approved and promoted by the National Crop Variety Approval Committee in 2021, with the approval number of Guoshendou 20210056. It participated in the variety test of Huanghuai summer soybean in the south area from 2018 to 2020. In the regional test in 2018—2020, the average yield of this variety was 2 793 kg·ha^-1, which was 2.1% higher than that of the control variety Zhonghuang 13. In the production test of 2020, the average yield was 2 697.0 kg·ha^-1, which was 3.9% higher than that of the control variety Zhonghuang 13. The crude protein content was 44.55%, and the crude fat content was 21.19%. The average growth days were 95.5 d, 1.0 d earlier than that of the control variety. The seed is round, uniform in size, strong groundbreaking ability, fast in seedling emergence, and suitable for mechanical precision sowing. The plant type is compact, lodging-resistant and dense, not shattering, and has good defoliation. It is suitable for mechanized harvesting and wheat stubble direct seeding summer soybean green yield-increasing and efficiency-increasing cultivation technology model. The creation and breeding experience of Shanning 23 has reference and guiding significance for the breeding and production of new soybean varieties.