Locations and changes of sequence variations were founded in CEVd and HSVd Taiwanese isolates. CEVd type species (A)(GenBank Acc. No. KC290927) and HSVd type species (B) (GenBank Acc. No. KC290929) were as structure models. 17 Taiwanese CEVd isolates and 13 HSVd isolates on secondary structure were compared to each structure models. Red color nucleotides meant that the changes were found in more than three variants, whereas black color nucleotides were detected in less than two.