A behavior control apparatus for a four-wheel drive vehicle comprising a driving unit, front and rear wheel driving torque transmission paths that transmit driving torques of the driving unit to front and rear wheels, respectively, and control unit. The rear wheel driving torque transmission path includes a speed increasing device for increasing speed of the rear wheels relative to the front wheels and two clutches for the left rear w heel and right rear wheel disposed between the speed, increasing device and the left rear wheel and the right rear wheel, respectively. The control unit engages the clutch on the turning inside when the vehicle is in oversteer state during turning under braking in a situation where the two clutches are disengaged.