To provide a cloth brush of nonwoven fabric attached to the rotary cylinder of a gantry type car washer, capable of being stiffened, stabilizing the shape of a rotary washing tool at a washing process and being prevented from winding around a body.

In this cloth brush 21 formed out of a washing member 22 and a mounting member 23 attached to the rotary cylinder of a gantry type car washer, the washing member 22 is made of a slender bag 24 of nonwoven fabric and a reinforcement sheet 25 of synthetic resin. The reinforcement sheet 25 has the forward end 25 buried in the slender bag 24 and a plurality of washing members 22 are attached to the mounting member 23.