A driving force control device for controlling engine torque generated by an internal combustion engine mounted on a vehicle and the engine revolution speed of the internal combustion engine based on the operation amount of driving force request operation on the vehicle to control the driving force of the vehicle is characterized by executing revolution fluctuation suppression control that suppresses fluctuations in engine revolution speeds when the operating point of the internal combustion engine in accordance with the engine torque and the engine revolution speed is within an optimum fuel economy range being a region set with a specified hysteresis width relative to an optimum fuel economy line of the internal combustion engine; accordingly, it is possible to improve the efficiency of the whole driving system.