a veneer splicing apparatus comprising a veneer detector for detecting the irregular portions of a veneer , disposed before a cutting tool which reciprocates toward and away from conveying means capable of being optionally driven or stopped , with respect to the direction of feeding a veneer ; a delivery conveyor disposed after the cutting tool ; veneer supporting members each disposed between the cutting tool and the delivery conveyor with one end thereof directed toward the cutting tool and with the other end thereof pivotally supported ; an adhesive material feed device to feed adhesive materials , such as adhesive tapes or adhesive - impregnated yarns , near to the veneer cutting position of the cutting tool ; said cutting tool or a tool holder being provided with an appropriate number of guide grooves at an appropriate distance away from the cutting edge of the cutting tool ; and pressing members integrally mounted on the tool holder on both sides , with respect to the direction of feeding a veneer , of the cutting tool by means of the guide grooves so that the pressing members are capable of being reciprocated toward and away from the veneer cutting position .