A tool for fixing anchor bolts is provided to easily arrange anchors in an engagement hole in a flange by regulating the interval between the anchor bolts by using a slider and a slider bar. In a tool for fixing anchor bolts(5), the anchor bolts are fixed so that the distances of the anchor bolts can be regulated to insert the anchor bolts into holes in a structure. A distance regulating unit(30) for regulating the distances of the anchor bolts is provided in a fixation member. The fixation member includes a fixation section to which the anchor bolts are fixed. The distance regulating unit includes a slider(31) and a slide bar(33).
