Biodiversity habitat survey water quality sampler

The utility model relates to a biodiversity habitat survey water quality sampler which comprises a mounting disc and a counterweight seat, a plurality of sample storage barrels for storing water are arranged on the lower surface of the mounting disc, and a plurality of water inlet holes communicated with the sample storage barrels are formed in the upper surface of the mounting disc; an adjusting plugging device for plugging and sealing the water inlet hole and opening water inlet is arranged on the mounting disc, and in addition, an adjuster for lifting, loosening and moving to sample different water layers is arranged on the adjusting plugging device; the adjusting plugging device comprises a mounting frame fixed to the upper surface of the mounting disc and an annular groove formed in the upper surface of the mounting disc and communicated with the water inlet hole. According to the biodiversity habitat survey water quality sampler, through the arrangement of the regulator, the whole sampler is convenientl