本文探讨研发项目中隐性知识传递效果的影响机制,我们把研发活动区分为创意产生类活动和问题解决类活动。首先我们分析了项目特征对于隐性知识传递效果的主效应，发现项目团队集权程度对隐性知识传递具有负向作用而其它项目特征对隐性知识传递均有正向作用；其次我们比较了两类活动中任务特征在项目特征对于隐性知识传递效果关系中的调制作用，发现在两类活动中任务特征的调制作用具有显著不同的特点;最后，我们提出了简要的研究结论。

The effect mechanism of project characteristics on the tacit knowledge transfer is studied. Idea generating activities and problem solving activities in New Product Development (NPD) are differentiated. At first, the main effect of project characteristics on the tacit knowledge transfer is inquired into and it is found that the team centralization has a negative relationships with the knowledge transfer, but other project characteristics play positive roles. Then how the task characteristics moderate the effect of project characteristics on the tacit knowledge transfer between the two activities in NPD is compared, and the different roles played by the task characteristics are discussed. At last, the research conclusion is provided.