A device for feeding a rubber sheet member comprising: a holding machine that holds a rubber sheet member wound in a roll shape; a conveying machine comprising a placement surface on which the rubber sheet member is placed, the conveying machine being disposed above the holding machine; a sensor that detects, at a predetermined position between a grip position and a release position, a lateral position of the rubber sheet member fed out from the holding machine; characterized in that, the device further comprises: a gripping machine that can grip and release a leading edge portion (Sf) of the rubber sheet member; a revolution driving mechanism that uses, as a revolution center, a position in a vertical direction midway between the grip position set below the conveying machine and the release position set at an upstream side in a conveying direction above the conveying machine, and revolves and moves the gripping machine between the grip position and the release position; a pressing portion that can move closer to and away from the placement surface at near the release position, wherein the leading edge portion (Sf) of the rubber sheet member fed out from the holding machine is gripped by the gripping machine at the grip position, and in this state, the gripping machine is revolved and moved to the release position, the leading edge portion (Sf) is pressed against the placement surface by the pressing portion at the release position, and then the rubber sheet member sequentially fed out from the holding machine is placed on the placement surface and conveyed to a downstream side in the conveying direction by the conveying machine. a holding machine that holds a rubber sheet member wound in a roll shape; a conveying machine comprising a placement surface on which the rubber sheet member is placed, the conveying machine being disposed above the holding machine; a sensor that detects, at a predetermined position between a grip position and a release position, a lateral position of the rubber sheet member fed out from the holding machine; characterized in that, the device further comprises: a gripping machine that can grip and release a leading edge portion (Sf) of the rubber sheet member; a revolution driving mechanism that uses, as a revolution center, a position in a vertical direction midway between the grip position set below the conveying machine and the release position set at an upstream side in a conveying direction above the conveying machine, and revolves and moves the gripping machine between the grip position and the release position; a pressing portion that can move closer to and away from the placement surface at near the release position, wherein a gripping machine that can grip and release a leading edge portion (Sf) of the rubber sheet member; a revolution driving mechanism that uses, as a revolution center, a position in a vertical direction midway between the grip position set below the conveying machine and the release position set at an upstream side in a conveying direction above the conveying machine, and revolves and moves the gripping machine between the grip position and the release position; a pressing portion that can move closer to and away from the placement surface at near the release position, wherein