PROBLEM TO BE SOLVED: To provide a seedling replenishing device of a transplanter which need not replenishing heavy seedlings to a seedling feeding device while raising the same from a seedling mounting table and does not apply falling impact to the seedlings.SOLUTION: The seedling replenishing device includes a seedling replenishing movable table 21 moving upward and downward between the side end of the seedling mounting table 4 and the seedling feeding device 10, the seedlings P is transferred from the seedling mounting table 4 to the seedling replenishing movable table 21 and the height of the same is kept, the seedling replenishing table 21 is lowered to replenish the seedlings P to the seedling feeding device 10 after predetermined operation, and the seedling replenishing device is further equipped with an attenuating mechanism reducing the lowering speed by applying resistance when the seedling replenishing movable table is lowered and not applying resistance when seedling replenishing movable table 21 is raised.COPYRIGHT: (C)2012,JPO&INPIT【課題】 重たい苗を移植機の苗載台から持ち上げて苗供給装置へ補給する必要がなく、苗に落下衝撃を加えることがない移植機の苗補給装置を提供する。【解決手段】 苗載台4の側端と苗供給装置10の間を上下動する苗補給可動台21を設け、苗載台4から苗補給可動台21に苗Pを移載してその高さに保持し、所定操作後に苗補給可動台21が下降して苗Pを苗供給装置10に補給し、苗補給可動台21の下降に際して抵抗となって下降速度を減速し、苗補給可動台21の上昇に際して抵抗とならない減衰機構を設けた。【選択図】図2