The invention relates to a transfer mechanism. The transfer mechanism comprises a transfer car frame and is characterized in that a driving wheel mechanism is installed at the front side of the transfer car frame; two driven wheels are separately installed at the two ends of the rear side of the transfer car frame; the driving wheel mechanism comprises a speed reduction motor which is a hollow shaft provided speed reduction motor; a first driving shaft is arranged in a hollow shaft of the speed reduction motor; the two ends of the first driving shaft are separately symmetrically connected withtwo second driving shafts through first shaft couplers; each second driving shaft is connected with a driving shaft through a second shaft coupler; each driving wheel is fixedly installed on the corresponding driving shaft; a cable guide wheel and a cable winder are installed on the transfer car frame; the cable guide wheel is used for guiding a cable; and the cable winder is used for winding thecable. The transfer mechanism provided by the invention is simple in structure, precise in movement and easy to locate.