To provide an industrial bilayer fabric excellent in a surface property and abrasion resistance.
In the industrial bilayer fabric comprising warp ground yarn-binding yarns forming a part of an upper surface side surface structure and a part of a lower surface side surface structure by weaving a group of upper surface side warps and a group of lower surface side warps vertically arranged with an upper surface side weft and a lower surface side weft, the diameter of the upper surface side warp is the same as that of the warp ground yarn binding yarn and the diameter of the lower surface side warp is larger than that of the warp ground yarn-binding yarn and that of the upper surface side warp and the lower surface side warp and the warp yarn-binding yarn are alternately arranged in the lower surface side layer, and the lower surface side weft is passed through the upper side of adjacent one lower surface side warp and warp ground yarn-binding yarn and then passed through the lower side of a plurality of lower surface side warps and warp ground yarn-binding yarn.