The utility model relates to a cleaning device for residual latex on a latex cylinder, and belongs to the field of ultrasonic cleaning tanks. The cleaning device for the residual latex on the latex cylinder is composed of an ultrasonic system and a cleaning tank; the ultrasonic system is used for generating ultrasonic and providing energy for the cleaning device for the residual latex on the latex cylinder; the cleaning tank provides a cleaning volume carrier for the latex cylinder to be cleaned and collects the residual latex cleaned off. The cleaning device has the following advantages that as a mirror surface is arranged on the inner side of a tank body, corrosion of flushing colloid can be effectively buffered, as heat preservation cotton is attached to the outer side of the tank body, heat loss of the tank body is avoided, and electric energy is saved; a single-sided side face sawtooth overflowing edge is arranged on one wall of the tank body, so that the efficiency of clearing the granular colloid in the tank body is improved, and the residual latex is recovered conveniently in a unified mode and treated in a centralized mode; a stainless steel support is arranged in the cleaning tank to protect a vibrating box.