A systematically comparative study on community structure of macrozoobenthos betweena a typical macrophytic lake, Lake Biandantang and a typical algal lake, Lake Houhu, was carried out from April, 1996 to March, 1997.The results showed that the species number, biodiversity, abundance and biomass of macrozoobenthos community in Lake Biandantang were much higher than those of macrozoobenthos in Lake Houhu;species composition and functional feeding groups were also prominently different, the similarity coefficient of macrozoobenthos communities in the two Lakes was about 0.30;in Biandantang Lake, scrapers were dominant in abundance and biomass, while in Houhu Lake, direct-collectors were dominant in number.These all probably were due to the presentation of higher aquatic macrophytes, especially those submerged ones, which provide various habitats and niches for more species, at the same time, keep the aquatic ecosystem complex, spatially heterogeneous and functionally stable.