PROBLEM TO BE SOLVED: To provide a rice transplanter which has a mat chemical applicator, can change the posture of the mat chemical applicator, and can expand a distance between the mat chemical applicator and a seedling tray so that a worker or the like can easily maintain the seedling mats on the seedling tray.SOLUTION: This rice transplanter 100 comprising a travel portion 1, a planting portion 4 for planting the seedlings of seedling mats in fields, and a mat chemical applicator 10 for spraying a chemical to the seedling mats is characterized by longitudinally swingably supporting the lower end of a support frame 53 for supporting the mat chemical applicator 10 on the rear portion of the travel portion 1, and supporting a nozzle stay 51 for supporting the spraying portion 43 of the mat chemical applicator 10 at a place close to the support frame 53.COPYRIGHT: (C)2008,JPO&INPIT【課題】マット施薬機の姿勢が変更できて、作業者等が苗載台上に苗マットのメンテナンスがし易いようにマット施薬機と苗載台との間隔を拡張することができるマット施薬機を備えた田植機を提供する。【解決手段】走行部1と、苗マットの苗を圃場に植え付ける植付部4と、該苗マットに薬剤を散布するマット施薬機10と、を具備する田植機100において、該マット施薬機10を支持する支持フレーム53の下端を該走行部1の後部に前後揺動可能に支承し、該マット施薬機10の散布部43を支持するノズルステー51を該支持フレーム53近傍にて支持可能とした。【選択図】図4