PROBLEM TO BE SOLVED: To provide a walking type rice planting machine including a reduced number of components, having an excellent maintainability, and having a seedling stopper holding structure capable of setting a working point for a seedling stopper low.SOLUTION: The walking type rice planting machine includes the seedling stopper 240 disposed below a seedling table 61 in such a way as rotatable in the vertical direction for preventing vertical feeding of a seedling mat 66 by abutting to the lower end of the seedling mat 66 placed on the seedling table 61. The seedling stopper 240 is comb-shaped, and includes: an abutting part 241a at the distal end of the seedling stopper 240 to abut to the lower end of the seedling mat 66 fitting parts 243R, 243L, 244R and 244L at the proximal end of the seedling stopper 240 to be fitted to a support member 230 laterally laid at a prescribed height position from a seedling placing surface 61a and cams 245 disposed on at least one side of the fitting parts 243R, 243L, 244R and 244L to be engaged with the support member 230 so that the seedling stopper is held at a standby position or at a working position.COPYRIGHT: (C)2012,JPO&INPIT【課題】部品点数が少なくてメンテナンス性がよく、苗ストッパの作用点を低く設定することができる、苗ストッパの保持構造を備える歩行型田植機を提供する。【解決手段】苗載台61の下部に上下回動可能に配置され、前記苗載台61上に載置された苗マット66の下端に当接させて、該苗マット66の縦送りを阻止する苗ストッパ240を備える歩行型田植機1において、前記苗ストッパ240は、櫛状に形成され、前記苗ストッパ240の先端には、前記苗マット66の下端に当接させる当接部241aが設けられ、前記苗ストッパ240の基端には、前記苗載面61aから所定高さ位置に横架された支持部材230に嵌合する嵌合部243R・243L・244R・244Lが設けられ、前記嵌合部243R・243L・244R・244Lの少なくとも一側面には、前記支持部材230に係合して、待避位置と作用位置に保持するカム部245を備えるものである。【選択図】図4