Over the past decades, despite paradoxes and challenges, Cross-strait academic exchange, as an interface and platform, has played an important role in enhancing mutual trust and understanding. This has provided both sides with necessary policy analysis. The two governments should continue to remove barriers to improve conditions in the environment for academic interflow and engagement. This article attempts to analyze the characteristics, trends, and influences brought about by Cross-strait interflow via the concepts of Constructivism, Common Interests and Social Capital. Empirical studies also provide some answers regarding questions on Crossstrait academic interflow.