本文采用ICP光谱仪对来自不同产地的25种茶叶中的K、Na、Ca、Mg等共14种元素进行了分析测定。原始光谱经过标准化处理后,结合聚类分析对来自安徽、福建、湖南和雅安四个地区的茶叶进行产地判别。结果表明此法可对不同产地茶叶进行很好的区分,茶叶中矿质元素的含量可作为茶叶产地判别的测量指标之一。 In this paper, a total of 14 elements of K, Na, Ca and Mg in 25 kinds of tea from different areas were analyzed by ICP spectrometer. After the original spectra were normalized, the origin of tea in four areas from Anhui, Fujian, Hunan and Ya’an was identified by cluster analysis. The results show that this method can make a good distinction between the tea leaves of different producing areas, and the content of mineral elements in tea can be used as one of the measurement indexes to judge the tea origin.