The genetic diversity and relationship of taro (Colocasia esculenta Schott) resources were analyzed at the molecular level provide the base for the classification, protection and effective utilization of these resources and breeding new varieties. The genetic diversity and relationship of 65 taro accessions were analyzed by Sequence-related Amplified Polymorphism (SRAP) markers. The data was analyzed by NT-SYS 2.1 software. Dendrogram was generated by UPGMA cluster. 341 DNA bands were amplified by 28 different primer combinations, 251 of which were polymorphic. The accessions were separated into 5 main groups based on the UPGMA cluster, the classification was basically consistent with the classification based on the growth styles of corm and cormel，basically concordant to the morphological description of 4 traits, including spot color of leaf center, petiole color (mid and base), sprout color of corm and flesh color of corm. There is rich genetic diversity in taro germplasms of different styles which were collected form different area and ecological environment. The classification based on the SRAP markers was consistent with the classification based on some primary morphological traits，and also explain possible evolutionary relationship in the cultivated taros.