利用高效液相色谱建立了以魔芋叶片中水溶性氨基酸为标识的指纹图谱分析方法。分析结果表明:同一品种不同部位的魔芋叶片具有相似的指纹图谱;同一品种、不同育龄的叶片及不同品种相应部位叶片的指纹图谱不同。为此,采用该指纹图谱库分析方法,可以鉴别不同品种、育龄的魔芋资源,为魔芋的新品种选育提供依据。 A high performance liquid chromatography (HPLC) method was developed for the fingerprint analysis of water-soluble amino acids in konjac leaf. The results showed that: the same species of different parts of the leaves of konjac have similar fingerprints; the same species, different age of child-bearing leaves and different parts of the corresponding parts of the leaves of different fingerprints. Therefore, using the fingerprint library analysis method, konjac resources of different varieties and childbearing ages can be identified, and the basis for selecting new konjac varieties is provided.