The long-term preservation and credibility of digital archive resources depend on the scientific authentication strategy. On the basis of reviewing the related literature, standards and projects in the field of authentication of long-term preservation of digital resources, this paper summarizes the lack of researches in four aspects of authentication technology, authentication requirement, authentication time limit and authentication chain and proposes that we should rely on the OAIS function model to carve out the authentication anchor points and adopt the standard mode, management mode and technology mode to implement the authentication work of long-term preservation of digital archive resources. It then closely combines the OAIS framework to design the authentication chain and framework for the integrated management of all kinds of authentication links.