The invention provides a high-elastic yarn printing and dyeing device, and relates to printing and dyeing devices. The high-elastic yarn printing and dyeing device comprises a rocker and a case. The rocker is horizontally arranged and comprises two parallel long rods, L-shaped limiting stoppers are arranged on the long rods, two ends of each long rod are fixed onto turntables on the left side andthe right side, the turntables on the left side and the right side are provided with short axles, the short axles on the two sides are rotationally fixed onto the side walls of two edges of the case,a motor is positioned on an outer side wall of the case and can drive the short axles to rotate, and a cover plate is arranged on the top of the case. The high-elastic yarn printing and dyeing devicehas the advantages that water, electricity and the time can be saved, operation can be simplified, the comprehensive cost can be reduced, the dyeing quality can be improved, good dyeing effects and uniform effects can be realized, and dyed high-elastic yarns are excellent in color fastness.