Abstract: The present invention generally relates to a fodder-feeding disc wire driving device having a tension management unit, the driving device including: a drive motor; a drive sprocket having multiple protrusions on a circumference thereof; an idle wheel provided at a position adjacent to the drive sprocket such that the disc wire moved by the drive sprocket passes over the idle wheel; a tension adjustment unit connected to a central shaft of the idle wheel, the tension adjustment unit being movably provided on a line extending between a central axis of the drive sprocket and a central axis of the idle wheel; a casing having a disc wire inlet and a disc wire outlet; a tension measurement unit mechanically provided between the casing and the tension adjustment unit.