Abstract: Disclosed is a fabric structure for fiber reinforced plastics, which comprises at least two yarn groups composed of straight reinforcing filamentary yarns composed of carbon fibers being free of bends and gathered in one direction in the form resembling a sheet, wherein the yarn groups are integrated with each other by auxiliary filamentary yarns so that the sheet-like faces of the yarn groups are made to confront each other and reinforcing filamentary yarns of one yarn group intersect reinforcing filamentary yarns of the other yarn group, and the auxiliary filamentary yarns have a higher elongation at break than that of the reinforcing filamentary yarns.