Abstract: To discuss the systematic problem of Seriphidium(Bess)Poljak.,the micro-morphological features on fruit of 8 species in China were observed under light microscope(LM)and scanning electron microscope(SEM)for the first time.The results show that the shape of most fruit was inversely-ovate or lengthened inversely-ovate;the hilum was round,which located top beside of fruit;there was a collar-ring on the top of fruit,and there were many remainder from style in central of collar-ring;the surfaces of fruit have washboard-form and obviously fold ornamentation.The surface micro-morphology were different to some extent between species,which can be used to classify of Seriphidium(Bess)Poljak.