Abstract: In order to promote the popularization of new fragrant rice（Oryza saliva subsp. Geng） varieties with high quality, this paper briefly introduced the breeding process, characteristics, yield performance and cultivation techniques of Longdao 209, a new fragrant rice variety. Longdao 209 is a high-quality fragrant rice variety selected by the Institute of Farming and Cultivation of Heilongjiang Academy of Agricultural Sciences through the pedigree method of female parent Longdao 21 and male parent Longxiangdao 2 from 2020 to 2021, the average yield of the regional test was 7 698.0 kg·ha^-1, which was 6.6% higher than that of the control variety Hagengdao 2; The average yield of the production test in 2021 was 7 869.8 kg·ha^-1, which was 6.5% higher than that of the control variety Hagengdao 2. On February 3, 2021, Longdao 209 obtained the plant variety right application number（20211001119）; On June 20, 2022, it was approved by the Heilongjiang Provincial Crop Variety Approval Committee, and the approval number was Heishen 20220047. The growth days of this variety are about 142 days, and the active accumulated temperature of ≥10 ℃ is about 2 700 ℃.