PURPOSE: To obtain the subject automatic and continuous machine excellent in safety and operation efficiency by bringing a reverse U-shaped cutter consisting of steel wire covered with fine cotton yarn into contact with Japanese radish in a rotating direction reverse to the rotating direction of the radish.

CONSTITUTION: A cutter 11B in which a fine steel wire is used as a core base and outside thereof is covered with fine cotton yarn is arranged in a rotation shaft 11A and brought into contact with Japanese radish 8 advancing to root tip direction by a feed roller 3 under the rotation with a cleaning brush roller 3 in a small interval of feed roller group 5, in order to remove the mustache on the side wall of Japanese radish.