Abstract: Open innovation is an innovative paradigm，in which enterprises can build some kind of open innovation network with the development of internal and external resources to realize the value maximization,breaking through the enterprise boundaries.Whereas union combination is an organization form that a core enterprise can simultaneously set up multiple alliances with suppliers, customers, complementary, etc. The purpose of this article is to analysis the effects of alliance portfolio on open innovation performance. First, an integrative framework of three levels that include "point - edge - net" is constructed. Second," point - edge - net" are disaggregated into six measured variables such as resource diversity, resource heterogeneity, the number of relationship, the intensity of relationship, the strength of network structure, and the coupling mechanism. Then, a case study of REFOND is analyzed to research the relationships between the six variables with open innovation. And this article finds that the six variables have positive effects on open innovation performance. Lastly, according to the analysis of REFOND, the related theory about open Innovation based on alliance portfolio is proposed.

摘要： 开放式创新是指企业突破企业边界构建某种开放的创新网络以开发内外部的创新资源实现价值最大化的创新范式，而联盟组合指核心企业与供应商、客户、互补者等同时建立多个联盟关系的组织形式。本文旨在探讨联盟组合的结构特征对开放式创新绩效的影响。首先，本文运用案例研究与扎根分析的方法，对瑞丰光电基于联盟组合开放式创新进行分析，即从联盟组合“点—边—网”的新视角，归纳出联盟组合的企业（点）、关系（边）和网络（网）三个层面上的六个结构特征要素，包括资源多样性（数量）、资源异质性（质量）、开放广度（数量）、开放深度（质量）、结构强度和耦合机制；同时，结合瑞丰光电案例剖析六个结构特征对开放式创新的影响机理，研究表明联盟组合的六个结构要素与创新绩效之间呈正相关关系。最后，本文演绎联盟组合结构特征与开放式创新的关系模型。

关键词: 联盟组合, 结构特征, 开放式创新, 案例研究, 扎根分析, alliance portfolio, open innovation, structural characteristic, case study, root analysis