An electric vehicle control device comprising: a motor controller configured to control, according to a torque command fed from a torque command generator , a torque of a motor unit that is configured to drive a wheel; an angular acceleration detector configured to detect an angular acceleration of a wheel driven by the motor unit; an angular acceleration monitor configured to monitor whether or not an angular acceleration of a wheel detected by the angular acceleration detector is equal to or smaller than an acceptable angular acceleration W, a slip-responsive controller configured to, when the angular acceleration monitor determines that the detected angular acceleration is greater than the acceptable angular acceleration W, cause the motor controller to reduce a drive torque of the motor unit , characterized in that said acceptable angular acceleration W is calculated with one of following formulas to : W = k 2 × R × Tt / m / r 2 + mg × sin a / m / r where k2 is a constant that takes an arbitrary value in the range of 1 to 2 and g is a gravitational acceleration; W = k 3 × R × Tt / m / r 2 + mg × sin a 1 / m / r where k3 is a constant that takes an arbitrary value in the range of 1 to 2; W = k 5 × R × Tmaxt / m / r 2 + mg × sin a / m / r where Tmaxt is a total maximum torque that is a sum of maximum torques of all motor units that drive wheels of the vehicle, k5 is a constant that takes an arbitrary value in the range of 1 to 2, and g is a gravitational acceleration; and W = k 6 × R × Tmaxt / m / r 2 + mg × sin a 1 / m / r where Tmaxt is a total maximum torque that is a sum of maximum torques of all motor units that drive wheels of the vehicle and k6 is a constant that takes an arbitrary value in the range of 1 to 2; where Tt is a total drive torque that is a sum of drive torques of all motor units that drive wheels of the vehicle, m is a vehicle mass, r is a tire radius, R is a reduction ratio of a reducer unit interposed between the motor unit and the wheel, a is a vehicle climbing angle detected by a climbing angle detector, and a1 is a maximum vehicle climbing angle as specified by specifications of the vehicle; and the electric vehicle control device is configured to calculate an acceptable angular acceleration W for travel on flat terrain and for travel on a slope. a motor controller configured to control, according to a torque command fed from a torque command generator , a torque of a motor unit that is configured to drive a wheel; an angular acceleration detector configured to detect an angular acceleration of a wheel driven by the motor unit; an angular acceleration monitor configured to monitor whether or not an angular acceleration of a wheel detected by the angular acceleration detector is equal to or smaller than an acceptable angular acceleration W, a slip-responsive controller configured to, when the angular acceleration monitor determines that the detected angular acceleration is greater than the acceptable angular acceleration W, cause the motor controller to reduce a drive torque of the motor unit , characterized in that said acceptable angular acceleration W is calculated with one of following formulas to : where Tmaxt is a total maximum torque that is a sum of maximum torques of all motor units that drive wheels of the vehicle and k6 is a constant that takes an arbitrary value in the range of 1 to 2; where Tt is a total drive torque that is a sum of drive torques of all motor units that drive wheels of the vehicle, m is a vehicle mass, r is a tire radius, R is a reduction ratio of a reducer unit interposed between the motor unit and the wheel, a is a vehicle climbing angle detected by a climbing angle detector, and a1 is a maximum vehicle climbing angle as specified by specifications of the vehicle; and the electric vehicle control device is configured to calculate an acceptable angular acceleration W for travel on flat terrain and for travel on a slope. <EOS>