The crawler type traveling apparatus 5 includes a pivot shaft 6 provided on a vehicle body having a hydraulic source in a protruding state, a track frame 51 rocking around and pivotably supported against this pivot shaft 6, a final reduction gear 53 including a sprocket 531 engaged by a crawler 56 and provided at an end part of this track frame 51, and a hydraulic motor 57 for driving the sprocket 531 of the final reduction gear 53 for rotation, in which the hydraulic motor 57 is provided on a vehicle inner side with respect to the final reduction gear 53.