The invention provides a control device for a four-wheel drive vehicle. The control device reduces running resistance to the maximum, prevents control decreases caused by switching delay of a drive force distribution mechanism, has no impact and motion delay during rotation synchronization of a drive system, and stabilizes vehicles running under external interference. When there is a curve in a forward driving path of a vehicle, a wheel clutch for a turning outer wheel of a rear shaft is engaged and a wheel clutch for a turning inner wheel of the rear shaft is disengaged during driving of the curve. When there is no curve, both of the right and left wheel clutches are engaged when it is estimated the vehicle receive a predetermined disturbance input during forward driving. Then, a target yaw moment of a vehicle is calculated. If an average speed of the right and left wheels of a front shaft is more than the speed of the turning outer wheel, the wheel clutch for the turning outer wheel is engaged when the target yaw moment is applied to the vehicle, so that the engaging force of a transfer clutch is controlled based on the target yaw moment.