摘要：围绕科研团队如何创造更多的知识，本文采用社会网络理论，构建了一个合作网的结构与关系强度的交互模型。通过收集111名学者及其科研团队的合作网数据，对相关假设进行了检验。结果发现：1）网络中心性对团队知识创造绩效有正向促进作用。2）网络密度负向调节网络中心性与知识创造绩效间的关系。3）关系强度进一步调节网络中心性与网络密度的交互作用。总体而言，当科研团队合作网络中心性高，网络密度小，成员间关系强时，科研团队的知识创造更好。

Abstract: Aiming for creating more knowledge within scientific research teams, this paper builds an interactional mode of cooperative networks structure and tie strength. Collecting data of 111 scholars and their cooperative networks, we testified our hypothesis. The results show as followings: 1) networks centrality has positive impact on team knowledge creation; 2) networks density alleviates the link between centrality and team knowledge creation; 3) tie strength enhances the moderation effect of centrality and density. Thus, scientific research teams will have better performance in term of knowledge creation when their cooperative networks characteristic of high centrality, low density and strong tie.