Pollen morphology and exine ornamentation of 28 eggplant materials and their related species were examined under scanning electron microscope (SEM).The results showed that the pollen shape of all the materials were prolate.They all had 3 colporates which annularly distributed in equal space,and extended to the two poles.The pollen sculptural type of eggplant was granular.There were difference on pollen grain sizes and sculptural features among different varieties.Pollen grain size could be as a basis to deduce the evolution among different shape of eggplant cultivars.The cluster analysis was conducted on some typical pollen morphology,and the results showed that the studied materials could be classified into two clusters:cultivars and their related species.The result was similar to that of traditional classification.