A new species Macrobiotus wuyishanensis sp. nov. (Tardigrada: Macrobiotidae) is described from Mt. Wuyi, Southeastern China. It is most similar to Macrobiotus spectabilis Thulin, 1928, but differs by lacking fine punctuation on the distal half of the projections on the egg, a ring of polygons that circle the base of each projection, and punctation between the projections on the egg shell. It is also similar to M. grandis Richters, 1911, but differs by smaller body size, lacking polygons and punctations between the projections on egg shell.