PROBLEM TO BE SOLVED: To set a proper seedling longitudinal taking amount in a planting time of a high-density raising seedling mat, and in a planting time of a standard-type raising seedling mat.SOLUTION: A rice transplanter 1 includes: a seedling planting device 23 in which seedlings are scraped by a planting claw 30 from a seedling mat placed on a seedling placing stand 29, and are planted on a farm field; and a seedling takeout board 131 arranged under the seedling placing stand 29. The rice transplanter is constituted so that a seedling longitudinal taking amount by the planting claw 30 can be adjusted by position adjustment of the seedling takeout board 131, and further an adjustable range of the seedling longitudinal taking amount can be changed.SELECTED DRAWING: Figure 34【課題】高密度育苗の苗マットの植付時と標準型育苗の苗マットの植付時とで適切な苗縦取量を設定可能にする。【解決手段】田植機1は、苗載台29に載置された苗マットから植付爪30で苗を掻き取って圃場へ植え付ける苗植付装置23と、苗載台29の下方に配置された苗取出板131を備え、苗取出板131の位置調節により植付爪30の苗縦取量を調節可能であると共に、苗縦取量の調節可能範囲を変更可能に構成している。【選択図】図34