Abstract: Brassica olerace cultivars, Changsheng 65 d and 80 d with green stem and loosen flower are early-and medium-maturation variety with high temperature tolerance. When planted in Songxi County, they both showed good tidiness, high adaptability, high marketability, fine quality, rich nutrition, good market response and high yield. The yield of Changsheng 65 d and 80 d were 16.8% and 20.76% higher than the control respectively, possessed higher economic efficiency and better social efficiency. In this study, the high yield cultivation technique for Changsheng Brassica oleracea with green stem and loosen flower was summarized.