The organoleptic quality,main chemical compositions and nutrient elements of Longfeng green teas coming from 11 areas were analyzed.The results showed that the shape,liquor color and refused leaves of all Longfeng teas had no difference,but the flavor and taste were different.The contents of biochemical composition and nutrient elements also had marked difference.The contents of tea biochemical composition:tea polyphenols 28.43%-34.23%,amino acids 2.58%-3.75%,caffeine 1.87%-2.52%,soluble sugar 2.32%-3.07%,chlorophyll 0.084%-0.129%,water extract 21.93%-44.78%,catechins 150.00-171.88 mg/g.The contents of elements:total N 5.47%-6.65%,total P 0.410%-0.502%,K 0.966%-1.129%,Ca 0.097%-0.135%,Mg 603.13-855.39 mg/kg,Fe 50.55-71.25 mg/kg,Cu 8.46-10.86 mg/kg,Zn 22.91-36.51 mg/kg.The Longfeng green teas could be divided into four types according to the systematic cluster analysis:the first type(Qianjin,Longwangya,Qichang,Shuangzhuyuan,Daping) with high contents of N,P,K,amino acids and water extract; the second type(Luohe,Qingcaoping,Jiuligang) with the low contents of nutrient element and biochemical compositions; the third type(Wangjiashan) with high contents of tea polyphenols and soluble sugar; the fourth type(Qinglongzhai,Meiziya) with high contents of Ca,Mg,caffeine and catechins.