PROBLEM TO BE SOLVED: To perform easily position adjustment of a body to be adjusted provided on a seedling planting device.SOLUTION: In a rice transplanter, a seedling planting device including bodies 32a, 32b to be adjusted whose positions are adjusted following displacement of an adjustment member 122, and a body 131 to be adjusted whose position is adjusted following displacement of an adjustment member 137 is connected to a traveling machine body. An adjustment actuator mechanism 171 for adjusting the position of the adjustment member 122, and an adjustment actuator mechanism 181 for adjusting the position of the adjustment member 137 are provided.SELECTED DRAWING: Figure 11COPYRIGHT: (C)2017,JPO&INPIT【課題】苗植付装置に設けられた被調節体の位置調節を簡便に行うことができるようにする。【解決手段】田植機において、調節部材122の変位に伴って位置調節される被調節体32a,32bと、調節部材137の変位に伴って位置調節される被調節体131を備えた苗植付装置が走行機体に連結されている。調節部材122を位置調節する調節アクチュエータ機構171と、調節部材137を位置調節する調節アクチュエータ機構181が備えられている。【選択図】図11