企业通过网络关系促进知识获取是提升产业集群协同创新绩效的重要手段。本文基于制造业产业集群206个有效企业样本的调查数据，引用知识获取作为中介变量，运用多元回归方法探讨了集群网络关系对协同创新绩效的影响。结果表明产业集群网络关系显著的正向影响协同创新绩效，知识获取在网络关系各维度对协同创新绩效中介作用的判断是：在网络强度、网络质量和网络稳定性对协同创新绩效的影响中存在完全中介作用，在网络权力和协同创新绩效之间存在部分中介的作用。并以此对提升产业集群协同创新绩效提出建议。

Promoting knowledge acquisition through network relationship is an important means to improve the performance of collaborative innovation in industrial clusters. Base on the data gathered through a survey of 206 enterprises in manufacturer clusters, this empirical study examines the mediating effect of knowledge acquisition in the relationship of cluster network relationship and collaborative innovation performance of firms by the method of multiple regressions. The results show that all of the network strength, network quality, network power and the stability of the network in cluster network relationship have significant positive impacts on collaborative innovation performance of firms. Furthermore, knowledge acquisition completely mediates the relationship between anyone of the network strength, network quality and the stability of the network and collaborative innovation performance of firms. However, knowledge acquisition has an incomplete mediating effect in the relationship of network power and collaborative innovation performance of firms. Finally，some suggestions are put for to improve the performance of collaborative innovation in industrial clusters.