A feeder management method configured to manage a feeder when producing a board based on a production plan specifying a production order of multiple types of boards in a predetermined future period by using: a board conveyance device configured to carry in/out and determine a position of a board; a component supply device in which multiple feeders are detachably mounted at multiple installation positions (32, SL1 to SL5), the feeder interchangeably holding a reel onto which a carrier tape with holding electronic components is wound, and an electronic component mounter including a component transfer device configured to pick up the electronic components from the feeder and mounting the electronic components on a board having a predetermined position; wherein the feeder management method comprises: a current state memory step of linking and storing a current component type of the electronic components, being supplied by the currently mounted feeder, and an installation position (32, SL1 to SL5) of the mounted feeder; a plan memory step of linking and storing required component types of the electronic components, being mounted on the multiple types of boards, and an installation position (SL1 to SL5) of the feeder of supplying the required components, and a reel removal guide step of guiding to remove a first reel from a first feeder of supplying the electronic components of which current state component type does not match any of the required component types, wherein the feeder has a tape feeding mechanism for feeding and rewinding the carrier tape, and the reel removal guide step includes an automatic rewinding step of rewinding the carrier tape onto the first reel with the tape feeding mechanism of the first feeder. a board conveyance device configured to carry in/out and determine a position of a board; a component supply device in which multiple feeders are detachably mounted at multiple installation positions (32, SL1 to SL5), the feeder interchangeably holding a reel onto which a carrier tape with holding electronic components is wound, and an electronic component mounter including a component transfer device configured to pick up the electronic components from the feeder and mounting the electronic components on a board having a predetermined position; wherein the feeder management method comprises: a current state memory step of linking and storing a current component type of the electronic components, being supplied by the currently mounted feeder, and an installation position (32, SL1 to SL5) of the mounted feeder; a plan memory step of linking and storing required component types of the electronic components, being mounted on the multiple types of boards, and an installation position (SL1 to SL5) of the feeder of supplying the required components, and a reel removal guide step of guiding to remove a first reel from a first feeder of supplying the electronic components of which current state component type does not match any of the required component types, wherein the feeder has a tape feeding mechanism for feeding and rewinding the carrier tape, and the reel removal guide step includes an automatic rewinding step of rewinding the carrier tape onto the first reel with the tape feeding mechanism of the first feeder. a current state memory step of linking and storing a current component type of the electronic components, being supplied by the currently mounted feeder, and an installation position (32, SL1 to SL5) of the mounted feeder; a plan memory step of linking and storing required component types of the electronic components, being mounted on the multiple types of boards, and an installation position (SL1 to SL5) of the feeder of supplying the required components, and a reel removal guide step of guiding to remove a first reel from a first feeder of supplying the electronic components of which current state component type does not match any of the required component types, wherein the feeder has a tape feeding mechanism for feeding and rewinding the carrier tape, and the reel removal guide step includes an automatic rewinding step of rewinding the carrier tape onto the first reel with the tape feeding mechanism of the first feeder.