PROBLEM TO BE SOLVED: To provide a rice transplanter hardly leaving many irregularities on a field face, enabling a seedling planting device to be lifted/lowered with small drive force, and prevents a second conveyance cylinder from being displaced.SOLUTION: A rice transplanter includes: a seedling planting device arranged in a rear part of a travel machine body a first granule feed device arranged in a front part of a seedling placement base of the seedling planting device a second granule feed device 33 arranged in a rear part of the seedling placement base a feed part 25 feeding the granules fed from the first and second granule feed devices 33 to a field face position a first conveyance cylinder 26 constituting a first conveyance path between the first granule feed device and feed part 25 a second conveyance cylinder 45 constituting a second conveyance path between the second granule feed device 33 and feed device 25 and a mud guard 56 arranged between a seedling planting part of the seedling planting device and the second granule feed device 33 above. A positioning part 59 limiting lateral oscillation of an intermediate part of the second conveyance cylinder 45 is arranged in the mud guard 56.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】圃場面に多くの凹凸部分を残し難く、且つ、小さい駆動力で苗植付装置の昇降を実施でき、且つ、第2搬送筒の位置ずれを防止できるようにする。【解決手段】走行機体の後方に配備された苗植付装置と、苗植付装置の苗載せ台の前方に配備された第1粉粒体供給装置と、苗載せ台の後方に配備された第2粉粒体供給装置33と、第1、第2粉粒体供給装置33から供給される粉粒体を田面位置に供給する供給部25と、第1粉粒体供給装置と供給部25との間の第1搬送路を構成する第1搬送筒26と、第2粉粒体供給装置33と供給部25との間の第2搬送路を構成する第2搬送筒45と、苗植付装置の苗植付部とその上方の第2粉粒体供給装置33との間に配備された泥除け56と、を備え、第2搬送筒45の中間部の横揺れを制限する位置決め部59を、泥除け56に設けてある。【選択図】図6