A adhered substance removing device of the present disclosure includes a suction removal unit configured to suck and remove a liquid medium with which a wiping sheet is impregnated and adhered substances which is separated from the wiping sheet by an oscillation unit and re-adhered to a surface of the wiping sheet. The suction removal unit includes a cylindrical suction nozzle having inlet holes in a surface along which the wiping sheet is guided. and a suction pump configured to suck air from the suction nozzle. The Suction pump is connected to the suction nozzle, and a lid is detachably attached to an opening of the suction nozzle.