Abstract: In order to promote the application of new soybean variety with high quality,high yield and high protein suitable for planting in the second accumulated temperature region of Heilongjiang Province.The breeding process,characteristics,yield performance and cultivation points of Suinong 71were briefly introduced in this paper.New soybean variety Suinong 71was bred by the combination of progeny pressure selection and molecular design breeding with the female parent of Heinong 54and the male parent of Dongnong 48and approved by Suihua Branch of Heilongjiang Academy of Agricultural Sciences in 2020.A rich polymerization of domestic and foreign excellent genetic genes.Suinong 71 made full use of high quality soybean resources of domestic and foreign,expanded and enriched soybean genetic base.The combination of domestic and foreign excellent genetic genes,the realization of quality and yield synergistic improvement.It had been approved and promoted by the Heilongjiang Province Crop Varieties Certification Committee in 2020.The certification number was Heishendou 20200018.The protein content of this variety was 45.55%,the fat content was 19.26%,the100-seed weight was about 24g,the growth days were 118d,the average yield of production test was2 655.7kg·ha^-1,which was 6.3%higher than that of the control variety Hefeng 50.This variety is suitable for planting in the second accumulation zone of Heilongjiang Province.