Abstract:The alliance has become an important way for enterprise to acquire the knowledge. Establishing and maintaining a close alliance relationship is conducive to improving the knowledge governance level of enterprise. This paper constructs a research framework of “relationship strength, member capacity, and knowledge governance”, and conducts empirical research. Firstly, this paper analyzes the direct influence of relationship intensity on formal knowledge governance and informal knowledge governance of alliance enterprise; secondly, from external and internal perspectives, constructs a dual mediation model to further investigate the mediation effects of alliance capability and knowledge absorption capability in the influence process, so to analyze the mechanism of influence of relationship strength on knowledge governance of alliance enterprise from two ways. The study finds that relationship strength has a significant positive influence on formal and informal knowledge governance of alliance enterprise; Alliance capacity and knowledge absorption capacity both play partial mediation effects in the influence process of relationship strength on formal and informal knowledge governance of alliance enterprise, which verifies the double mediation paths of member capacity.