Failure of stent may result in loss of radial support of the stented vessel or in perforation of the vessel by the broken stent struts.The method of "test to success"is the traditional way to assess the stent performance under some predefined simulated physiologic conditions, which may be very costly and time consuming, especially for the fatigue evaluation that may last several months.Finite element analysis is an extremely useful complement and has been proven to be effective and capable of providing a better understanding for stent design [1].