The invention belongs to the technical field of glass processing, and discloses a cleaning device for tempered glass deep processing. The cleaning device comprises a bottom mechanism, a transmission mechanism is arranged at the bottom of the inner side of the bottom mechanism, a sliding mechanism is arranged at the top of the bottom mechanism, a cleaning mechanism is slidably connected to the bottom end of the sliding mechanism, and the bottom mechanism comprises a supporting frame; and shaft holes are formed in the opposite inner walls of the supporting frame, a rotating shaft is rotationally connected into the shaft holes, a fixed plate is arranged at one end of the rotating shaft, first air bags are communicated with the two sides of the fixed plate, clamping plates are arranged at the other sides of the first air bags, and communicating air channels are formed in the clamping plates. By means of the cleaning device, transmission, clamping, cleaning and overturning of to-be-tempered glass can be simply and conveniently completed, cleaning is comprehensive and free of dead corners, meanwhile, soft contact clamping of the to-be-tempered glass can be achieved by means of the air bags, the clamping effect is good, and wind power drying and impurity removal, impurity liquid flow guiding and recycling and the like can be conducted on the to-be-tempered glass.