To enable a supply interval of an agricultural material to be properly set in a paddy-field working machine.SOLUTION: A paddy-field working machine includes a transmission to which power of a prime mover part is transmitted, and a working device supplying an agricultural material to a field intermittently at a preset supply interval. Power of the transmission is branched in parallel into a travel transmission system and a work transmission system, and power in the travel transmission system is transmitted to wheels for traveling, and power in the work transmission system is transmitted to the working device through a continuously variable transmission 45. A working number of revolutions detector 65 for detecting a number of revolutions of the power from the continuously variable transmission 45 is provided on the downstream side of the continuously variable transmission 45.SELECTED DRAWING: Figure 4【課題】水田作業機において、農用資材の供給間隔を適切に設定することができるようにする。【解決手段】原動部の動力が伝達される変速装置と、事前に設定された供給間隔で農用資材を田面に間欠的に供給する作業装置とが備えられる。変速装置の動力が走行伝動系及び作業伝動系に並列的に分岐されて、走行伝動系の動力が走行用の車輪に伝達され、作業伝動系の動力が無段変速装置45を通って作業装置に伝達される。無段変速装置45の下流側に、無段変速装置45からの動力の回転数を検出する作業回転数検出部65が備えられている。【選択図】図4