The loading device (I) for a self-loading feed mixing wagon (2) and self-loading feed mixing wagon (2) comprising such a loading device (1) comprises a pick-up device for picking up roughage and a discharging device for discharging the pickedup roughage, in which the pick-up device comprises two gripper halves (3a, 3b) which can pivot with respect to each other, in which said gripper halves (3a, 3b) are pivotable between an open configuration and a closed configuration and in which said discharging device comprises a discharging rotor (4) which is rotatably arranged in said pick-up device. By means of said loading device (1), roughage can be picked up without the risk of damaging the roughage.