An integrated roll rigidity and differential slip control system for a wheeled vehicle comprises roll rigidity changing means for changing roll rigidity distribution to front and rear wheel sides, roll rigidity control means for controlling the operation of said roll rigidity changing means based on vehicle running conditions, a differential interposed between the rear wheels, clutch means for supplying a slip limiting force to the differential to limit differential action thereof, and slip control means for controlling engagement of the clutch means based on vehicle running conditions and integrated control means for controlling, in preference to the control by the roll rigidity control means, the roll rigidity distribution in such a way that a roll rigidity is larger on the front wheel side and smaller on the rear wheel side in response to a cornering condition in which a driving force is distributed more to a cornering outside driving wheel than to a cornering inside driving wheel.