The present invention is a crawler device for a crawler type vehicle, which lowers the vehicle height, decreases the vehicle width, and exhibits superior stability during operation. For this purpose, in a crawler type vehicle having, on right and left sides of either one of front or rear portion, or both of the front and rear portions of a vehicle body, crawler devices each having a sprocket, an idler disposed on a truck frame, and a crawler belt passed through the sprocket and the idler, the crawler device can include a front end link coupled to a forward part of the truck frame by a pin at a lower end portion thereof and to the side of said vehicle body by a pin at the upper end portion thereof, and can include a rear end link coupled to a rearward part of the truck frame by a pin at the lower end portion thereof and to the side of the vehicle body at a position behind the front end link by a pin at the upper end portion thereof.