Abstract: In order to promote the popularization and application of a new rice variety Songgeng 56, this paper introduced its breeding, characteristics, and cultivation technology. Songgeng 56,a new rice variety was bred in Biotechnology Institute, Heilongjiang Academy of Agricultural Sciences by the pedigree method of hybridization with shennong199 as female parent and songgeng 12 as male parent. Songgeng 56 was selected to participate in the regional test in 2018-2019. From 2018 to 2019,the average yield of Songgeng 56 was 8 277.3 kg·ha^-1, which was 5.3% higher than that of the control variety Longdao 5. Songgeng 56 was entered production test in 2020, the average yield of production test was 8 780.2 kg·ha^-1, which was 5.9% higher than that of the control variety Longdao5. From 2019 to 2020, the results of two consecutive years showed that the quality of this variety has reached the national secondary national level. It was approved by Heilongjiang Provincial Variety Approval Committee in 2021（Heishendao 2021L0020）. The variety showed high yield potential, good eating quality, strong disease resistance and lodging resistance and other characteristics.It is suitable for planting in the second accumulative temperate zone of Heilongjiang Province.