Abstract: There is provided a power supply mechanism of a conveyor system in which power can be provided to a product placed on a pallet by conductive brushes in which said pallet is slidingly transferred to contact the conductive brushes. The power supply mechanism includes a switch for connecting or disconnecting first and second groups of conductive brushes of the conveyor system to or from each other, a driving power source electrically connected to the switch, for providing power for operating the switch, a limit switch for continuing or discontinuing power supplied from the driving power source to the switch, a first connection line for connecting the first conductive brush group to the switch, and a second connection line for connecting the second conductive brush group to the switch. According to the above power supply mechanism, the limit switch is operated only after the copper contact terminal plate on the bottom surface of the pallet completely contacts the second conductive brush group.