lobjectl To prov.ide a cereal stems feeding device with a spindle of a rotating body fixed in a stabl-e manner, preventing cerealstems from tangling inside the cereal stems feeding device. lsol-utionl An object of the present invention 1s achieved by providing a feeding surface extending along a feeding direction of cereal stems; a feeding mernber feeding cereal stems by moving, near the feeding surface, from the upstream side of the feeding direction of cerea.I stems to the downstream side; a guide member, disposed at an upstream portion in the feeding direction of cereal stems, for guiding the movement of the feeding member, positioned opposite to the feeding surface with respect to the feeding member; a support for supporting the guide member in such a manner that the guide member is movable in a direction that the distance between the guide member and the feeding surface changes; and a changer, disposed between the support and the guide member, for changing the position of the guide member in the feeding direction of cerea]- stems.