PROBLEM TO BE SOLVED: To avoid reduction in the strength of a guard member without impairing operability while performing the position change and fixing of the guard member by a locking body attached to the guard member.SOLUTION: A paddy field working machine comprises an engaging part 65 provided in a fixed part 23 and a locking body 62 provided in a guard member 60. The attachment posture of the guard member 60 can be changed between a guard posture in which the guard member 60 is positioned on the outer side of an end part of a work device in a lateral direction and suppresses contact with another object and a storage posture in which the guard member 60 is positioned on the inner side of the end part of the work device in the lateral direction. A grip operation part 62b for performing the posture change operation of the guard member 60 is formed by a portion of the locking body 62, which is extended to the side away from the fixed part 23 than the guard member 60 in an engaging/disengaging direction of the locking body 62 with respect to the engaging part 65.SELECTED DRAWING: Figure 6
