a control device for a motor fan of a vehicle , which controls the motor fan to cool a radiator for engine coolant and a condenser for air conditioner refrigerant , includes : a first command value calculation section which calculates a first command value for control of the motor fan according to refrigerant pressure ; a second command value calculation section which calculates a second command value for control of the motor fan according to coolant temperature ; a first target value setting section which sets the greater of the first command value and the second command value as a first target value ; a second target value setting section which obtains a second target value for control of the motor fan which corresponds to a total torque which is smaller than a total torque of a torque of an alternator and a torque of a compressor corresponding to the first target value ; and a control section which controls the motor fan according to the second target value . and the second target value setting section corrects the total torque of the torque of the alternator and the torque of the compressor based upon a predetermined condition when obtaining the total torque of the torque of the alternator and the torque of the compressor .