A crawler device for a crawler type vehicle for lowering the vehicle height and decreasing the vehicle width that exhibits a superior stability at the time of operation. In a crawler type vehicle having on right and left sides of either one of front and rear portions or both portions of a vehicle body (3) crawler devices each having a sprocket (12), an idler (16A) disposed on a truck frame (15) and a caterpillar (11) passed around the sprocket (12) and the idler (16A), a front side link (181) coupled to a front side position of the truck frame (15) by means of a pin (181D) at a lower end portion thereof and to the vehicle body (3) side by means of a pin (181U) at an upper end portion thereof and a rear side link (182) coupled to a rear side position of the truck frame (15) by means of a pin (182D) at a lower end portion thereof and to a rearward position of the front side link (181) on the vehicle body (3) side by means of a pin (182U) at an upper end portion thereof are provided.
