To provide a crawler caster that can absorb impact with simple constitution.

A crawler caster A for supporting a body B movably is provided with a rear wheel 20 constantly grounded being rotatably supported to a support body 10 connected to the body B, a front wheel 30 disposed above the ground by the specified quantity being rotatably supported to the support body 10 in front of the rear wheel 20, and an endless belt 40 stretched over the rear wheel 20 and front wheel 30 so as to roll in association with rotation of the rear wheel 20 and front wheel 30. In this case, the endless belt 40 with high tension material disposed on the inner peripheral side and with high elastic rubber material disposed on the outer peripheral side in a laminated state is used as the endless belt 40.