The present invention relates to a cleaning device for blinds consisting of a spiral hose (1) and a rubber or plastic covering (2) enclosing the blind. The blind is held clamped by means of a number of cords (6) running along the outer side of the spiral hose (1). In the spiral hose (1) there is a top (8) and a bottom (3). The top (8) is fitted with a valve (10), a reel (9), on which a cord (6) is wound, the cord causing the spiral hose (1) to be held together when cleaning fluid/water is filled. The top (8) may further be provided with a flushing device (23), a funnel (18) and a lid (24). This has the effect that the cleaning device for blinds may be manufactured without the cords (6) and the reel (9). In the bottom (3) there is located a spring (27) having a plate (28) at the top allowing the blind to be activated by a light pressure on the top (3) in order to produce motion in the cleaning fluid which thus better penetrates between the slats of the blind. The cleaning device for blinds may be used for all sizes of blinds.