A new optical network architecture based on address difference label(ADL) was introduced.Under ADL node structure the recovery scheme is very simple and no need O-E converters.Further more,ADL-based optical node structure can achieve different level service-guaranteed in optical netowork.The performance with different spare resources was also analyzed in optical networks.Simulation results show that in ADL-based optical networks Wp (the protect wavelength numnber)/W (the available wavelength number)=1 is an important necessary condition to realize effective protect.