The utility model relates to a cotton seed delinting device, in particular to a rotating piece and lifting handle type miniature cotton seed delinting device which performs effective delinting on smaller quantity of cotton seeds for scientific research. The rotating piece and lifting handle type miniature cotton seed delinting device mainly comprises a rotating stir rack, a movable filter screen cup and a delinting tank, wherein the rotating stir rack mainly comprises a lifting handle, a rotary table frame, a plurality of rotating pieces, a driving mechanism and a rotating piece driving mechanism; the rotating stir rack is driven by the driving mechanism to rotate; the plurality of rotating pieces are driven by the rotating piece driving mechanism to rotate; and the movable filter screen cup comprises a cup body provided with meshes, annular bosses are arranged on the inner wall of the cup body, and the edge of the rotary table frame is placed on the annular bosses. The cotton seed delinting device is simple and convenient to operate and simple in structure, has lower technical requirements for an operator, reduces waste acid discharge capacity and can improve the delinting quality effectively.