Abstract: In order to promote thepromotion and application of the new high-quality maize variety Heikeyu 17, the breeding process, agronomic characteristics, yield performance and supporting cultivation technology of Heikeyu 17 were introduced. Heikeyu 17 was bred by the Heihe Branch of the Heilongjiang Academy of Agricultural Sciences with the inbred line Suixi 708 as the female parent and the inbred line Bianzi d-2 as the male parent. In 2020, it was approved by the National Crop Variety Approval Committee of the Ministry of Agriculture（Approval number: Guoshenyu 20210157）.The average yield of Heikeyu 17 in regional test in 2018-2019 was 10 701.6 kg·ha^-1, an average increase of 6.6% compared with the control variety Demeiya 1, and the average yield of the production test in 2020 was 9 666.8 kg·ha^-1, an increase of 3.5% compared with the control variety Demeiya 1. Heikeyu 17 is an ordinary single-cross maize variety with a whole growth period of about 112 days, with excellent performance from excavation ability to seedling growth, high yield, stable yield and excellent quality, and is suitable for planting in areas cold regions with active accumulated temperature of ≥10 ℃ and above 2 200 ℃.