A recording material processing apparatus includes a guide shaft of which an axial direction extends in a recording material width direction intersecting a discharge direction of a recording material, and an alignment unit that moves along the guide shaft, in which the alignment unit includes a bearing portion that is movably fitted onto the guide shaft, an alignment portion that is provided to be exposed at an outer side in the discharge direction and comes into contact with an end surface of the recording material that is parallel to the discharge direction from an outer side of the recording material to align a position of the end surface, an arm portion that connects the bearing portion and the alignment portion to each other, and a protruding portion that protrudes from a surface of the arm portion to a position outside the recording material in the axial direction of the guide shaft and comes into contact with a surface of a device main body, which is parallel to the discharge direction, in a case where an external force is applied to the alignment unit with the alignment unit being at a position close to the surface.