PROBLEM TO BE SOLVED: To provide a transplanter capable of simplifying a work placing an empty tray on a tray placement member.SOLUTION: A transplanter includes: a machine body; a travel device supporting the machine body so as to travel; a steering handle arranged in a rear part of the machine body; a seedling placement base arranged in a rear part of the machine body and on a front side of the steering handle and placing a tray storing a large number of seedlings; a seedling take-out device taking out the seedling from the tray on the seedling placement base; and a tray placement member capable of changing a position between a placement position receiving an empty tray after the seedling is taken out by the seedling take-out device and a stand position supporting the machine body.SELECTED DRAWING: Figure 1