The invention provides a production device and a production method for a rotary filter stick. The production device comprises a storage cabin and a cutting device arranged below the storage cabin, wherein the cutting device comprises a rotary cutting blade and a rotary drum wheel which is arranged beside the rotary cutting blade; the outer surface of the rotary drum wheel is provided with a groove for accommodating the filter stick; the distance between the rotation center of the rotary cutting blade and the rotary drum wheel is smaller than a sum of the radius of the rotary cutting blade and the radius of the drum wheel. The production device is simple in structure, is high in automation degree, and conforms to a novel technology of adjusting the ventilation amount through rotation of a cigarette filter. By adopting the production device and the production method, automatic annular slotting of the filter stick can be realized, and the surface flatness of an incision and the consistency of a slotting depth are ensured.