Accessions of taro，collected from different parts of China were subjected to ISSR（inter-simple sequence repeats） analyses to assess prevalence of genetic diversity. With 13 ISSR primers，109 bands were amplified in 72 accessions of taro, of 85 bands were polymorphism. High genetic diversity was revealed by ISSR markers as ranges of similarity coefficient values was 0.56-0.97, The accessions were grouped by subjecting the f similarity values to UPGMA based clusting. At 0.725 genetic similarity value, all the 72 accessions could be grouped in 3 big clusters and several subclusters. The result will be helpful in efficient classification, evolutionary, conservation and utilization of genetic diversity of taro.