A grizzly apparatus comprising: a plurality of grizzly bars disposed in such a manner that an extension direction of center axes of the plurality of grizzly bars is parallel to a first direction, the plurality of grizzly bars being arranged at predetermined intervals in a second direction perpendicular to the first direction; and at least one guide provided above the plurality of grizzly bars and extending in the first direction, wherein each of the plurality of grizzly bars is arranged to rotate in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit, arranged such that a screening target object passes, and a gap, arranged such that the screening target object does not pass, alternately emerge, between adjacent grizzly bars, the slit being formed between peripheral surfaces arranged to rotate in an upward direction, of the adjacent grizzly bars, and wherein the at least one guide has a solid structure and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit, characterized in that the at least one guide includes an outer member forming an outer shape of the guide, and a reinforcement member provided in a space formed by the outer member and allowing the outer member to have a stiffness for keeping its shape, and wherein the at least one guide has at least one inclined surface which is inclined with respect to the first direction in such a way that the inclined surface descends as the inclined surface advances to a first side in the first direction. a plurality of grizzly bars disposed in such a manner that an extension direction of center axes of the plurality of grizzly bars is parallel to a first direction, the plurality of grizzly bars being arranged at predetermined intervals in a second direction perpendicular to the first direction; and at least one guide provided above the plurality of grizzly bars and extending in the first direction, wherein each of the plurality of grizzly bars is arranged to rotate in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit, arranged such that a screening target object passes, and a gap, arranged such that the screening target object does not pass, alternately emerge, between adjacent grizzly bars, the slit being formed between peripheral surfaces arranged to rotate in an upward direction, of the adjacent grizzly bars, and wherein the at least one guide has a solid structure and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit, characterized in that the at least one guide includes an outer member forming an outer shape of the guide, and a reinforcement member provided in a space formed by the outer member and allowing the outer member to have a stiffness for keeping its shape, and wherein the at least one guide has at least one inclined surface which is inclined with respect to the first direction in such a way that the inclined surface descends as the inclined surface advances to a first side in the first direction.