A solder supply system comprising: a solder supply device including (a-1) a solder container housing liquid solder that is tubular and open at one end, (a-2) a nozzle, for ejecting solder from the solder container, that is inserted into the solder container, and (a-3) a piston that is fixedly provided on an outer circumferential section of the nozzle and that is engaged inside of the solder container from the opening of the solder container, wherein the solder supply device, in use, supplies solder from the tip of the nozzle by moving at least one of the solder container and the piston such that the piston advances inside the solder container; characterized in that the solder supply system comprises: a reading device for reading an identification code affixed to the solder container; and a control device including (b-1) a judging section adapted to judge whether the solder container is set in the solder supply device, and (b-2) a reading device control section adapted to restrict reading of the identification code by the reading device in a case in which the judging section judges that the solder container is not set in the solder supply device. a solder supply device including (a-1) a solder container housing liquid solder that is tubular and open at one end, (a-2) a nozzle, for ejecting solder from the solder container, that is inserted into the solder container, and (a-3) a piston that is fixedly provided on an outer circumferential section of the nozzle and that is engaged inside of the solder container from the opening of the solder container, (a-1) a solder container housing liquid solder that is tubular and open at one end, (a-2) a nozzle, for ejecting solder from the solder container, that is inserted into the solder container, and (a-3) a piston that is fixedly provided on an outer circumferential section of the nozzle and that is engaged inside of the solder container from the opening of the solder container, wherein the solder supply device, in use, supplies solder from the tip of the nozzle by moving at least one of the solder container and the piston such that the piston advances inside the solder container; characterized in that the solder supply system comprises: a reading device for reading an identification code affixed to the solder container; and a control device including (b-1) a judging section adapted to judge whether the solder container is set in the solder supply device, and (b-2) a reading device control section adapted to restrict reading of the identification code by the reading device in a case in which the judging section judges that the solder container is not set in the solder supply device. a reading device for reading an identification code affixed to the solder container; and a control device including (b-1) a judging section adapted to judge whether the solder container is set in the solder supply device, and (b-2) a reading device control section adapted to restrict reading of the identification code by the reading device in a case in which the judging section judges that the solder container is not set in the solder supply device. (b-1) a judging section adapted to judge whether the solder container is set in the solder supply device, and (b-2) a reading device control section adapted to restrict reading of the identification code by the reading device in a case in which the judging section judges that the solder container is not set in the solder supply device.