To meet the sealing requirements in extremely working conditions in aerospace field,the overall performance of W-sealing ring was studied.A method was proposed to optimize the overall performance of W-sealing ring under working condition from springback,sealing and stability performance,and the static calculation model under working conditions and the quasistatic compression springback model were built to calculate the proportion of plastic deformation region,the maximum contact stress and the springback rate to describe the stability,the sealing and springback performances.The optimization method of W-sealing ring was built,which uses stratified solution method and weighted mean to build structural objective function,and can complete the solution of the overall performance of W-ring in the range of working conditions.The result matches a foreign company’s product well,which proves correctness of the method.