The invention relates to a cleaning device for a dust removal bag. The cleaning device comprises a main body, a fixing plate, a limiting plate, a cleaning mechanism and a driving mechanism, the driving mechanism comprises a motor, a rotating shaft, a lead screw and a driven assembly, the driven assembly comprises a connecting rod and balls, and the cleaning assembly comprises a connecting pipe anda water outlet pipe. According to the cleaning device for the dust removal bag, the dust removal bag is cleaned through cooperation of the cleaning mechanism and the driving mechanism, compared withan existing cleaning mechanism, the cleaning mechanism achieves cleaning of the interior of the dust removal bag through vortex formed by rotation of blades, secondary cleaning of the interior of thedust removal bag is achieved through the driving assembly, cleaning of the interior of the bottom end of the dust removal bag is achieved through a vibration mechanism, the water outlet pipe generatesvibration waves through knocking of a rubber rod on the water outlet pipe, cleaning of the dust removal bag is achieved, cleaning of the outer surface of the dust removal bag is achieved through spraying of water, the mechanism can achieve cleaning of the dust removal bag in all directions, the dust removal effect is good, and the dust removal bag can be repeatedly used and is economical and environment-friendly.