PROBLEM TO BE SOLVED: To achieve the improvement of loading amount of reserve seedlings by installing a sub-reserve seedling-loading part different from a reserve seedling-loading part so as to perform transplanting work smoothly for aiming at the improvement of working efficiency while maintaining the easiness of the feeding work of the seedlings at the reserve seedling-loading part.SOLUTION: This seedling transplanter installing a seedling-transplanting part at the rear part of a traveling vehicle body and a reserve seedling-loading stand (38) for loading seedling boxes for loading the seedlings or seedling-scooping plates for loading the seedlings at the side part of the vehicle body, and constituting the reserve seedling-loading stand (38) with a reserve seedling-loading part (72) capable of loading a plurality of seedling boxes or a plurality of seedling-scooping plates continuously and movably, and a sub-reserve seedling-loading part (150) having a smaller loading space than that of the reserve seedling-loading part (72) is provided by installing the sub-reserve seedling-loading part (150) as capable of switching a loaded state of arranging it above the reserve seedling-loading part (72) and a retreated state of retreating from above the reserve seedling-loading part (72) by transferring it in the direction of crossing the transferring direction of the seedling boxes or seedling-scooping plates of the reserve seedling-loading part (72).COPYRIGHT: (C)2011,JPO&INPIT【課題】 本発明は、予備苗載部での苗の供給作業の容易化を維持しながら、該予備苗載部とは別の副予備苗載部を設けて予備苗の搭載量の向上を図り、植付作業を円滑に行えるようにして作業能率の向上を図ることを課題とする。【解決手段】 走行車体の後部に苗植付部を設け、苗を載せた苗箱又は苗を載せた苗掬い板を載置する予備苗載台(38)を走行車体の側部に設け、予備苗載台(38)を、複数の苗箱又は複数の苗掬い板を連続して移動可能に載置できる予備苗載部(72)と、該予備苗載部(72)よりも載置スペースが小さい副予備苗載部(150)で構成した苗植機において、副予備苗載部(150)を、予備苗載部(72)の上方に配置される載置状態と予備苗載部の苗箱又は苗掬い板の移動方向と交差する方向に移動させて予備苗載部(72)の上方から退避する退避状態に切替可能に設けた。【選択図】図9