Objective To study the relation between the clinical feature and glycoprotein D gene sequence analysis of a wild strain of HSV 2 isolated from one relapsed patient with genital herpes. Methods The partial glycoprotein D gene sequence of the above mentioned strain was amplified and cloned with PCR. Results The comparison of the amino acid sequence of gD gene between the wild strain and HSV 2G strain published showed that there was a mutation at site80 and site159. Conclusion In order to develop effective vaccine which is suitable for China, it is necessary to investigate the differences of the gene structure and function of gD among HSV isolated from China and other countries.