A vehicle seat belt apparatus includes a reel to wind a seat belt, a motor to control a belt tension of the seat belt by rotating the reel, and a lock section to allow rotation of the reel in a normal state, and to prevent rotation of the reel in a belt extracting direction in an actuated state. A control section is provided to restrict a lock operation of the lock section by rotating the motor in a belt retracting direction when the belt tension is controlled by the motor.