To provide a method for weaving a filament woven fabric, with which a defect of Barabike (seemingly sink mark-like interval unevenness in the weft direction on the surface of woven fabric) is prevented without quickening an opening timing and the conventional problem caused by the quickening of the opening timing can be solved.

In this method for weaving a filament woven fabric in weaving a woven fabric composed of warp and weft made of a filament yarn by using a water jet loom, a yarn feed body equipped with a guide member for regulating a yarn guide inward is used, a yarn is unreeled in the direction opposite to the objective yarn feed direction, the unreeled yarn is subjected to weft inserting from a nozzle for weft inserting while passing the unreeled yarn through the guide member and unreeling the yarn in the objective yarn feed direction.