The corinnid spider, Oedignatha platnicki Song et Zhu 1998 is newly recorded from northern Taiwan. It differs from O. scrobiculata Thorell 1881 from southern Taiwan by having a relatively smooth carapace and lacking any paired light spots on the abdomen, and from all the other congeners by the male having two minute teeth on the dorsal branch of tibial apophysis, and the female having a mushroom-shaped vulva. Both sexes of O. platnicki are described or redescribed, photographed and figured based on materials from Taiwan. The female of O. platnicki is described for the first time.