PROBLEM TO BE SOLVED: To provide a transplanting machine in which the linear motion steering control to further stabilize the linear motion traveling in the planting work in the field can be provided at low cost, in a transplanting machine with a control unit for executing auto planting control of automatically moving a planting machine up and down.SOLUTION: A transplanting machine is provided for executing auto planting control to lift a planting machine 6 in a non-working position by steering operation, and then to lower and operate the planting machine 6 in a planting working position on condition of traveling a predetermined distance. In the transplanting machine, a power steering device 32 for assisting the operation of a steering handle 16 is controllably provided by a control unit 50. The control unit 50 performs linear motion steering control to increase and decrease assist force from the power steering device 32 according to the travelling speed of the machine body, as at least one condition that the linear motion traveling of a machine body is detected by operation detection means 29.SELECTED DRAWING: Figure 11COPYRIGHT: (C)2016,JPO&INPIT
