PROBLEM TO BE SOLVED: To provide a transplanter having a rotor marker at the front end of a marker arm projecting sideward and vertically rotatable, between a running body and a seedling table of a planting part, wherein the rotor marker does not contact to the running body and the seedling table even in a storage posture moved the marker arm upward. SOLUTION: The rotor marker in a working posture projecting sideward contacts the mud and rotates to form a running standard mark when the marker arm is moved downward, and the rotor marker in a storage posture and positioned between the running body and the seedling table is made foldable longitudinally to the marker arm when the marker arm is moved upward. COPYRIGHT: (C)2006,JPO&NCIPI