Abstract: In order to promote the popularization of new rice variety Kenjing No.8（Nongfeng 13 B229）,this paper introduced its breeding process,variety characteristics,yield performance and cultivation techniques.Kenjing No.8 is a new excellent variety bred from progenies of Jijing 88/Nongda 10,a combination of conventional cross and pedigree method,which was bred by Rice Research Office of Bayi Agricultural University in Heilongjiang Province.Kenjing No.8 was approved by Heilongjiang Provincial Crop Variety Approval Committee（approval No.:Heishendao 2018007）in May 2018,and Kenjing No.8 won the"excellent shortlist award"in the second China Heilongjiang International Rice Festival in 2019,and won the"third prize"in the national excellent taste japonicarice evaluation organized by North Rice Cultivation Science and Technology Association in 2019.The average yield of this variety was 8 539.0 kg·hm^-2 in 2015-2016,which was 6.4% higher than the control variety Longdao 11.The average yield was 8 200.5 kg·hm^-2 in 2017,which was 7.6% higher than the control variety Longdao 18.It is suitable for planting in the lower limit of the first accumulated temperature zone in Heilongjiang Province.