A food dough cutting apparatus configured to cut a long and large food dough into a small food dough having a preset given weight, comprising: a weighing conveyor configured to be capable of loading thereon the long and large food dough and of weighing a weight of the loaded long and large food dough; a downstream conveyor configured to support an upstream portion of the long and large food dough transferred from the weighing conveyor; and a cutting device moving in a vertical direction provided between the weighing conveyor and the downstream conveyor; a cutter control device; characterized in that the downstream conveyor is provided adjacen to the weighing conveyor; and the cutter control device is configured to control that: a weighed value of the whole long and large food dough loaded on the weighing conveyor and weighed by the weighing conveyor is stored in storing means provided in the cutter control device, thereafter, an actual weight of the long and large food dough is continuously weighed so as to be reduced with a weight of the upstream portion of the long and large food dough from the stored weight of the long and large food dough while the whole long and large food dough is transferred toward the downstream conveyor from the weighing conveyor, thereafter, the measured value is subtracted from the weight stored in the storing means by means of computing means provided in the cutter control device; when the value resulting from the subtraction becomes equal to the preset given weight, the weighing conveyor and the downstream conveyor are stopped; thereafter, the cutting device cuts out from the long and large food dough the small food dough having the preset given weight; thereafter, the weight of the food dough stored in the storing means is updated with the weight of the food remaining on the weighing conveyor as the new weight of the food dough; thereafter, the above-described operations are repeated, whereby the small food dough having the preset given weight is repeatedly cut out of the long and large food dough. a weighing conveyor configured to be capable of loading thereon the long and large food dough and of weighing a weight of the loaded long and large food dough; a downstream conveyor configured to support an upstream portion of the long and large food dough transferred from the weighing conveyor; and a cutting device moving in a vertical direction provided between the weighing conveyor and the downstream conveyor; a cutter control device; characterized in that the downstream conveyor is provided adjacen to the weighing conveyor; and the cutter control device is configured to control that: a weighed value of the whole long and large food dough loaded on the weighing conveyor and weighed by the weighing conveyor is stored in storing means provided in the cutter control device, thereafter, an actual weight of the long and large food dough is continuously weighed so as to be reduced with a weight of the upstream portion of the long and large food dough from the stored weight of the long and large food dough while the whole long and large food dough is transferred toward the downstream conveyor from the weighing conveyor, thereafter, the measured value is subtracted from the weight stored in the storing means by means of computing means provided in the cutter control device; when the value resulting from the subtraction becomes equal to the preset given weight, the weighing conveyor and the downstream conveyor are stopped; thereafter, the cutting device cuts out from the long and large food dough the small food dough having the preset given weight; thereafter, the weight of the food dough stored in the storing means is updated with the weight of the food remaining on the weighing conveyor as the new weight of the food dough; thereafter, the above-described operations are repeated, whereby the small food dough having the preset given weight is repeatedly cut out of the long and large food dough. a weighed value of the whole long and large food dough loaded on the weighing conveyor and weighed by the weighing conveyor is stored in storing means provided in the cutter control device, thereafter, an actual weight of the long and large food dough is continuously weighed so as to be reduced with a weight of the upstream portion of the long and large food dough from the stored weight of the long and large food dough while the whole long and large food dough is transferred toward the downstream conveyor from the weighing conveyor, thereafter, the measured value is subtracted from the weight stored in the storing means by means of computing means provided in the cutter control device; when the value resulting from the subtraction becomes equal to the preset given weight, the weighing conveyor and the downstream conveyor are stopped; thereafter, the cutting device cuts out from the long and large food dough the small food dough having the preset given weight; thereafter, the weight of the food dough stored in the storing means is updated with the weight of the food remaining on the weighing conveyor as the new weight of the food dough; thereafter, the above-described operations are repeated, whereby the small food dough having the preset given weight is repeatedly cut out of the long and large food dough.