为筛选提升绿茶品质的优良无性系茶树品种，对山东茶区近几年引进的10个主要无性系茶树品种的生化成分茶多酚、氨基酸、咖啡碱进行化验分析，研究其主要生化成分的特点，分析其酚/氨比值。‘中茶108’游离氨基酸含量最高，全年平均为2.89%，春茶含量高达4.04%，茶多酚含量适中，咖啡碱含量较高，酚/氨比值最低，平均为5.85，‘中茶108’是适制绿茶最好的品种，山东茶区无性系茶树引种重点推荐‘中茶108’。

Abstract: To analysis and research tea polyphenol .amino acid. Caffeine of 10 clone tea varieties for Shandong tea area in recent years,Research characteristics of mai biochemical components,,Analysis phenol/ammonia ratio; Zhongcha 108 values of free amino acid were at their highest, Average2.89%,Spring Tea average4.04%, Tea polyphenol content is moderate,Caffeine content is higher， Phenol/ammonia ratio minimum， Average5.85, Zhongcha 108 is the best breed of system of green tea，Highly recommended Zhongcha 108 in Shandong tea area. Key word: clone；tea variety；biochemical component