The invention discloses a cutting machine achieving accurate locating. The cutting machine comprises a base, a stand column is fixedly connected to the side, far away from the base, of each connectingplate, and a cross beam is fixedly connected to the tops of the stand columns; a cutter bar is fixedly connected to the bottom of a clamping block, a cutter is connected to the outer side of a rotating shaft in a sleeving manner, and a cutting table is fixedly connected to the top of the base; and baffles are fixedly connected to the two sides of the top of the base, a locating bar is connected to the side, far away from the cutting table, of each baffle in a penetrating manner, an extruding plate is fixedly connected to the side, close to the cutter, of each locating bar, and a connecting bar is connected to the side, far away from the corresponding extruding plate, of the top of each locating bar in a penetrating manner. According to the cutting machine achieving accurate locating, thebase, the cutting table, the baffles, the locating bars and the extruding plates are matched for use, so that the problem that a cutting notch is uneven due to inaccurate locating of the cutting machine is solved; and the cross beam, a sliding slot, a buffering block, a spring, the clamping block and the cutter bar are matched for use, so that the problem that the cutting machine is prone to be damaged by a to-be-cut object is solved.