[Objective] The paper was to study the predatory capacity of different states of Homeopronematus anconai and its female adult mite against different states of Aculops lycopersici, so as to provide scientific basis fur effective application of H. anconai against the damage caused by A. lycopersici. [ Method ] The predatory capacity of deutonymph, male adult mite and female adult mite of H. anconai against nymph of A. lycopersici, as well as the predatory capacity of female adult mite of H. anconai against eggs, young nymph mites and adult mites of A. lycopersici were determined in rearing room under certain temperature and humidity conditions. [ Result ] The predatory functional response curve of deutonymph, male adult mite and female adult mite of H. anconai against nymph of A. lycopersici was Holling Ⅲ under the conditions of T = （25 ± 0.5 ） ℃ and RH = 70% ± 5%. The attack coefficients were 0.241 6, 0. 357 1 and 0. 509 6, while the treatment times were 0. 064 5, 0. 036 7 and 0. 014 1, respectively. The attack coefficient of female adult mite of H. anconai was the largest with the shortest treatment time. The predatory functional response curve of female adult of H. anconai against eggs, young nymph mites and adult mites of A. lycopersici was also Holling Ⅲ. The attack coefficients were 0.357 3, 0. 509 6 and 0.204 1, while the treatment times were 0. 011 6, 0. 014 1 and 0. 087 6, respectively. [ Conduslon ] The female adult of H. anconai had the strongest predatory capacity against A. lycopersici.
