Abstract: The results show that the relationship between nematode population in field of eggplant and the incidence of Verticillium wilt on eggplant is significant; the numbers of nematode in rhizosphere of serious symptomon eggplants are more than those of light disease eggplants and health plants; the nematodes in root of the serious disease plants are more dense than those of light disease and health ones, but there are no differences between rhizosphere and out-rhizosphere of eggplant field; the incidence of Verticillium wilt on eggplant is much seriously inoculated by the mixture of the pathogen and nematodes than only by the fungus, and the more nematodes are inoculated, the much seriously the disease is; the nematodes population inoculated by the mixture is more than that only by the fungus; the parasitical nematodes species are Tylenchu, Prathylenchus, Tylenchornychus and Aphelenchoidae.