Abstract: Currently, most papers that study the effect of wavelength translation on WDM network usually aim at single-fiber network and do not consider the requirement of network survivability. This paper studies network performance of multi-fiber WDM mesh networks while nodes install wavelength converter and satisfy the requirement against single-link failure under dynamic traffic demand and static traffic demand, respectively. Used methods include integer linear programming (ILP) and simulation. Benefits of wavelength translation to resilient, multi-fiber WDM mesh networks will be more completely described.