As one of the numerical calculation methods, the Finite Element Model(FEM) has been used a lot in the civil aircraft strength design and structure optimization, and also been recognized as the most useful numerical calculation methods in the aviation domain. But still now on, there is no one effective way to validate FEM for certification. This paper solved this problem from regulation by discussing the FEM airworthiness certification requirements and methods to make sure the certification points and established the certification evaluation system finally. The method of verifying the FEM for certification can contribute for the future civil aircraft design.