This work vehicle is provided with: a travel machine body C including a travel device A; a seedling planting device W which performs an operation with respect to an agricultural field; a steering unitU capable of steering the travel device A; a receiving device 63 which acquires position information from a satellite positioning system; a main inertial measurement device 62 which measures inertialinformation; a generating unit which generates a target line along which the travel machine body C is to travel; and a control unit which controls the steering unit U on the basis of the position information and the inertial information in such a way that the travel machine body C travels along the target line. The receiving device 63 and the main inertial measurement device 62 are disposed in different locations in the travel machine body C.