PROBLEM TO BE SOLVED: To provide a paddy field work machine which is advantageous in transportation or storage of a machine body and improves stability of the machine body even with a structure that a feed-out amount adjustment mechanism is installed on one of right/left sides of the machine body.SOLUTION: The paddy field work machine includes: a hopper 23 storing a feeding object to a field; plural feed-out mechanisms 24 feeding out the feeding object from the hopper 23 by a predetermined amount; a feed-out drive shaft 29 disposed in the right/left direction and extended across the respective feed-out mechanisms 24; a feed-out transmission mechanism 30 transmitting power from a vehicle body to the feed-out drive shaft 29; and a feed-out amount adjustment mechanism 31 adjusting collectively a feed-out amount of the feeding object by the respective feed-out mechanisms 24. The feed-out mechanisms 24 are continuously arranged to a lower end part of the hopper 23 while arranged at a predetermined interval in a right/left direction. The hopper 23 includes, on at least one of right/left side ends, an overhang part 23B overhung outward laterally from the feed-out mechanism 24 arranged at a right/left outer end. The feed-out amount adjustment mechanism 31 is disposed at right/left one side end part in a state in which at least a part of the feed-out amount adjustment mechanism 31 enters a space 76B below the overhang part 23B.【課題】機体の左右一側部に繰出量調節機構を配備する構成でありながら、機体の輸送や格納などの面において有利にし、かつ、機体の安定性を向上させる。【解決手段】圃場に対する供給物を貯留するホッパ23と、供給物をホッパ23から所定量ずつ繰り出す複数の繰出機構24と、各繰出機構24にわたる左右向きの繰出駆動軸29と、走行車体からの動力を繰出駆動軸29に伝達する繰出用伝動機構30と、各繰出機構24による供給物繰り出し量を一括して調節する繰出量調節機構31とを備え、各繰出機構24を、左右方向に所定間隔をあけて並べた配置でホッパ23の下端部に連接し、ホッパ23は、少なくともその左右一側端に、左右の外端に配備する繰出機構24から横外方に張り出す張出部23Bを備え、繰出量調節機構31を、少なくともその一部を張出部23Bの下方の空間76Bに入り込ませた状態で機体の左右一側端部に配備している。【選択図】図4