A work vehicle comprising: an engine; a hydraulic pump driven by the engine; a work implement driven by hydraulic fluid discharged from the hydraulic pump; a travel device driven by the engine; a power transmission device for transmitting drive power from the engine to the travel device; a controller for controlling the power transmission device; and a forward-reverse operation member configured to selectively switch between a forward-travel position, a reverse-travel position, and a neutral position for switching the vehicle between a forward travel state, a reverse travel state, and a neutral state; the power transmission device including: an input shaft; an output shaft; a gear mechanism including a planetary gear mechanism (68, 69) for transmitting the rotation of the input shaft to the output shaft; a motor (MG1, MG2) connected to a rotational element in the planetary gear mechanism (68, 69); and a forward-reverse switching mechanism containing a forward-travel clutch and a reverse-travel clutch configured such that during forward travel of the vehicle the forward-travel clutch is engaged and the reverse-travel clutch is disengaged, and during reverse travel of the vehicle, the forward-travel clutch is disengaged and the reverse-travel clutch is engaged; and the power transmission device is configured so that varying a rotation speed of the motor (MG1, MG2) varies a rotation speed ratio of the output shaft to the input shaft; characterized by the controller including: a neutral control determination unit for determining of carrying out quasi-neutral control when a quasi-neutral control determination condition is satisfied, including the forward-reverse operation member being in the neutral position; a forward-reverse clutch control unit for keeping the forward-travel clutch or the reverse-travel clutch engaged during the quasi-neutral control; and a commanded torque setting unit for determining a commanded torque sent to the motor (MG1, MG2) so that a neutral state is set during quasi-neutral control where an output torque from the power transmission device to the travel device is kept at a prescribed value regardless of the drive power output from the engine. an input shaft; an output shaft; a gear mechanism including a planetary gear mechanism (68, 69) for transmitting the rotation of the input shaft to the output shaft; a motor (MG1, MG2) connected to a rotational element in the planetary gear mechanism (68, 69); and a forward-reverse switching mechanism containing a forward-travel clutch and a reverse-travel clutch configured such that during forward travel of the vehicle the forward-travel clutch is engaged and the reverse-travel clutch is disengaged, and during reverse travel of the vehicle, the forward-travel clutch is disengaged and the reverse-travel clutch is engaged; and a neutral control determination unit for determining of carrying out quasi-neutral control when a quasi-neutral control determination condition is satisfied, including the forward-reverse operation member being in the neutral position; a forward-reverse clutch control unit for keeping the forward-travel clutch or the reverse-travel clutch engaged during the quasi-neutral control; and a commanded torque setting unit for determining a commanded torque sent to the motor (MG1, MG2) so that a neutral state is set during quasi-neutral control where an output torque from the power transmission device to the travel device is kept at a prescribed value regardless of the drive power output from the engine.