The utility model discloses a cradle suspension type walking device, comprising a cradle vertical beam formed by splicing a plurality of sets of Bailey beams and directly placed on a bridge surface, a plurality of cross beam fixation cradles arranged on the cradle vertical beam, an anchoring system arranged on a tail part of the cradle vertical beam. The cross beam is composed of a double I-shaped beam, the cross beam fixation cradle is composed of finish-rolling deformed steel bar suspension rod capable of vertically passing through the vertical beam and the cross beam and two ends of the finish-rolling deformed steel bar suspension rod are fastened by nuts. The cradle suspension type walking device has features of simple structure, no need of laying tracks and simple and convenient operation during the construction process.