The invention belongs to the field of curtain production and particularly discloses a dedusting curtain, including two curtain body, two curtain bodies are set symmetrically, the curtain body consistsof curtain cloth and dust removal mechanism; the motor and the rotating frame are fixed on the wall, and the wall sliding connection has a limit which can limit element the rotation of the threads, and the length of the limit element is shorter than the length of the screw; the motor output shaft is connected to one end of the screw, the other end of the screw is coupled with the rotating frame,the thread element is fitted with the screw, the end of the screw closed to the motor has a circular groove, the annular groove has a connector, the connector is connected to the screw, and the connector is connected with the screw. The two corners of the curtain are connected to the connections and thread fittings, and the glass bars are fitted with silk, ratchet wheel is set on the screw and ratchet fitted with the ratchet wheel is set on the wall, and the ratchet wheel is permanently connected with a gear. The purpose of the invention is to provide a dust-removal curtain, which is very convenient to remove dust from the surface of the curtains, without removing to clean and save labor.