PROBLEM TO BE SOLVED: To arrange a cover for suppressing mud of a farm field from splashing upward by a planting mechanism, without interfering with other components.SOLUTION: A seedling planting device includes: a seedling mounting rack 16 on which seedlings are mounted planting mechanisms 18 for vertically moving between seedling feeding parts 17 provided at the lower end of the seedling mounting rack 16 and a farm field, and planting the seedlings taken out from the seedling feeding parts 17 in the farm field and covers 61 each fixedly supported so as to cover the upper side of each planting mechanism 18. The seedling mounting rack 16 is provided movable in the approaching/separating direction to/from the planting mechanisms 18 placed on the lower side thereof, and the covers 61 are provided so as to be positionally adjustable in the fore-and-aft direction.COPYRIGHT: (C)2015,JPO&INPIT【課題】植付機構によって圃場の泥土が上方側に飛散するのを抑制するカバーを、他の部材と干渉せずに備えること。【解決手段】苗を載置する苗載せ台16と、その苗載せ台16の下端部の苗供給部17と圃場との間で上下往復移動して苗供給部17から取り出した苗を圃場に植付ける植付機構18と、その植付機構18の上方側を覆うように固定支持されたカバー61とが備えられ、苗載せ台16は、その苗載せ台16の下方側に配置された植付機構18に対して接近離間方向に移動自在に備えられ、カバー61は、前後方向に位置調整自在に備えられている。【選択図】図3