W-sealing ring is a kind of elastic metallic seal which is used to solve sealing problem in extremely working conditions in aerospace field.A finite element model of Wring was built and its working stress under different states was analyzed.The influencing factors of maximum Von Mises stress and maximum contact stress were explored.The whole loading and unloading process of W-ring under different working states was simulated by using ANSYS and the influencing factors of compression recovery rate were explored.It is found that in the calculation range,the increase in wave thickness and compression displacement causes the increase of maximum contact stress and the improvement of sealing property,and the increase in wave height and temperature causes the decrease of maximum contact stress and sealing property;the increase in wave thickness and compression displacement causes the decrease of compression recovery rate,and the increase in wave height and pressure causes the increase of compression recovery rate.