PROBLEM TO BE SOLVED: To provide a seedling-planting machine for planting seedlings in three or more rows, whose seedling-supplying device is relatively small and light, and which can well maintain workability for supplying the seedlings to a seedling receiver and can reduce or eliminate the differences of mutual distances between planted rows.SOLUTION: A seedling-supplying device 6 includes linear portions 28 extended in the lateral direction of the revolving movement route of the seedling receiver 22 in plan view, and arcuate portions 29 arcuately curved back and forth. Adjacent dropping supply positions 31, 32, 33, 34 are arranged so that the arrangement distances of the adjacent dropping supply positions 31, 32, 33, 34 on the revolving movement route are differentiated, and narrow arrangement distances and wide arrangement distances among the mutual arrangement distances are placed at the linear portions 28 and at the circular portions 29, respectively.COPYRIGHT: (C)2008,JPO&INPIT【課題】 苗供給装置を比較的小型で軽量なものとし、苗収容体への苗補給作業性も良好に維持でき、更には互いの植付条間の差異を小さくしあるいはこの差異を無くした3条以上の苗を植付ける苗植機を構築する。【解決手段】 苗供給装置6の苗収容体22の周回移動経路を平面視で左右方向に延びる直線状部分28と該直線状部分28から前側又は後側に円弧状に曲がる円弧状部分29とを備えた構成とし、隣接する落下供給位置31,32,33,34の前記周回移動経路に沿う互いの配列間隔を異ならせると共に、前記互いの配列間隔のうち狭い配列間隔が前記直線状部分28に位置し広い配列間隔の少なくとも一部が前記円弧状部分29に位置するように各々の落下供給位置31,32,33,34を配置した3条以上の苗を植付ける苗植機とした。【選択図】 図2