The invention relates to a cleaning device, and particularly to a writing brush cleaning device. In order to solve the technical problem, the invention provides the writing brush cleaning device which is time-saving, labor-saving and high in cleaning speed, does not easily damage the writing brush in the cleaning process, and does not affects the use of the writing brush; in order to solve the technical problem, the writing brush cleaning device provided by the invention comprises a base plate, wherein a frame is mounted at the middle of the top of the base plate in a bolted connection manner; sliding rods are mounted on the left side and the right side of the top of the base plate respectively in a bolted connection manner; each of the sliding rods is sleeved with a sliding sleeve; the sliding sleeves are in sliding fit with the sliding rods; a transverse plate is arranged between the middle of the right side surface of the sliding sleeve on the left side and the middle of the left side surface of the sliding sleeve on the right side; a fixing device is arranged on the transverse plate. The writing brush cleaning device has the benefits as follows: both time and efforts are saved, the cleaning speed is high, the writing brush is not easy to damage by the cleaning device in the cleaning process, and the using effect of the writing brush is not affected.