The invention discloses a mounting device for a transponder of a ballastless track bed, and relates to the field of railway tracks. According to the mounting device, a base of the device adopts the form of an inner groove structure, a rubber pad and a vibration damping sheath are arranged in a mounting hole of the mounting device, an eye bolt is rigidly connected to the ballastless track bed through a shaft shoulder, external energy is consumed through the damping action of a vibration damping rubber sleeve, energy of which external force directly acts on the base is dispersed, and therefore the transponder and the mounting device for the transponder are protected; reliable looseness prevention is realized in a treatment mode that a trepanning pin is additionally arranged at a locking guide sheet; a vulnerable rubber part is detachable; and the device has good vibration damping, protecting and ice impact resisting functions, and therefore the ice strike resisting capacity of a productis improved, potential safety hazards of railway transportation are reduced, and the service life of the product is prolonged.