Abstract: A new spring rapeseed variety with good quality and high yield,Gaoyou 9,was bred by the Cold Region Crops Research Institute,Shanxi Academy of Agricultural Science,from the combination of ＂Mengl008 x Huairen mustard ＂.It was approved by Shanxi Crop Variety Approval Committee in 2006.The average yield of the variety was 1452 kg/hm^2, increased by 5.8% over that of Jinyou 6 （ok）. Its oil content is 33.1%.Its oleic acid, linoleic acid and crucic acid content are 41.6%,29.9% and 1.1%, respectively.Gaoyou 9 is a new low erueie acid rapeseed variety.High yield cultivation techniques of the variety were also proposed.