Abstract: In order to promote the popularization and application of new maize varieties,this paper briefly introduced the breeding process,characteristics,yield performance,suitable planting area and cultivation technology of Nendan 27.Nandan 27 is a precocious,high-yield and high-quality hybrid bred by Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences in 2020 from self-breeding inbred line N3805 as female parent and self-breeding inbred line 1064 as male parent.The growing days of this variety in the adaptive area was120 d,and the≥10℃ active accumulated temperature was 2 400 ℃．It had the characteristics of high yield,high quality,multi-resistance,wide adaptability and suitable for mechanized harvest.In 2020,it was approved and promoted by Heilongjiang Crop Varieties Certification Committee,and is suitable for planting in the third accumulation zone of Heilongjiang Province.