PROBLEM TO BE SOLVED: To provide a seedling-planting machine in which the lateral loop width of a loop-like seedling supply device is narrowed so that a worker can walk on the back side of a machine frame at all times, whereby the worker can plant seedlings, while walking between flat ridges, even in a narrow green house.SOLUTION: This seedling-planting machine wherein a seedling-supplying device 42, where seedling receivers 45 for dropping vegetable seedlings revolve in a lateral loop-like form, is disposed above a seedling planter in the rear portion of a machine frame is such that the engaging positions with the seedling receivers 45 of moving action members 51 for making the seedling receivers 45 revolve in the right and the left end portions are shifted vertically, and both the moving action members 51 are disposed in a mutually approaching state so that the outer peripheries of the moving action members 51 partially overlap.COPYRIGHT: (C)2009,JPO&INPIT【課題】本発明では、ループ状の苗供給装置の左右ループ幅を狭くすることで作業者が常に機体の後側を歩くようにして狭いハウス内でも平坦な畝間を歩きながら苗の植付作業を行えるようにすることが課題である。【解決手段】野菜苗を投入する苗収容体45が左右でループ状に周回する苗供給装置42を機体後部の苗植付け体上に配置した野菜苗植付機において、前記苗収容体45を左右端部で周回させる移動作用体51の苗収容体45への係合位置を上下にずらすと共に、両移動作用体51をその外周一部が重なりあうよう接近して配置したことを特徴とする野菜苗植付機の構成とする。【選択図】図1