Abstract: With Huangdan as the control species(CK),the national regional test of a new tea variety-Dangui was conducted for 6 years in Guangdong,Guangxi and Hu′nan provinces.The characteristics of Dangui in the regional test were detected including the rate of survival,growth potential,phenological phase,yield of fresh leaves,quality of made tea and its environmental resistances.The results showed that Dangui grew well,and had the high rate of survival,early phenological phase and strong environmental resistance,as well as high yield of fresh leaves and good quality of made tea.It could be an early-maturing,excellent-quality and high-yielding tea variety,which had good adaptability in plantation,popularization and application in Guangdong,Guangxi and Hunan provinces and other Oolong tea regions.