The continuous valve timing control system and method of the variable valve duration engine is started.
Is provided with a continuously variable valve timing (CVVT) to the intake in accordance with an embodiment of the inventive device, 2 an exhaust stage variable valve duration (VVD) apparatus and method valve timing control of the continuously variable valve timing (CVVT) apparatus is provided with the engine comprising divided into a plurality of control areas in accordance with the engine speed and load; If the step of the control area, the first area, and late intake valve closing (IVC) timing, applying the long duration of the exhaust valve, and controls to limit the overlap; If the step of the control area, the second area, and advancing the intake valve closing (IVC) timing, applying the long duration of the exhaust valve, and controls to control the overlap in accordance with the engine load; The step of the control zone is the third, applying the long duration of the exhaust valve if the area and advancing the intake valve closing (IVC) timing in accordance with an increase in engine load; If the step of the control area, the fourth region, and opens the throttle valve to a maximum, applying a short duration to the exhaust valve; And may include the step of: if the said control region fifth region, opening the throttle valve to a maximum, applying the long duration of the exhaust valve and the intake valve late closing (IVC) timing in accordance with an increase in engine speed.