Phylogenetic relationships among mulberry varieties (Morus species) were analyzed on the basis of RAPD in order to identify the possibility of classification for the species. Polymorphisms under RAPD method were compared among 41 mulberry varieties. From the results of RAPD for 41 mulberry varieties by use of 30 different primers, 151 polymorphic bands were formed out of 201 ones. Under the dendrogram based on cluster analysis with the polymorphic bands, the varieties were classified into 7 groups including two large and five small ones on 0.747 value of genetic similarity coefficient. In the large groups 19 and 16 varieties were belong to group I and III, respectively. On the other hand, relatively high genetic similarity was shown among the varieties belonging to the group I, II and III. While, relatively low similarity were done between them in the group IV-Ⅵ and the other groups, and Mohusang in the group Ⅶ showed the lowest phylogenetic relationship with the other varieties.