中文摘要：

以复杂网络理论为基础，依据生态工业系统的择优、增长等无标度网络特征，探讨生态工业系统的复杂性特点，并应用基于相似度贡献的节点重要性评价方法对生态工业系统中的企业进行了评价。通过计算各个企业的NR值确定企业重要性，并把这个结果应用到管理实践中，为生态工业系统企业提供指导。

英文摘要：

Based on the complex network theory, this paper determines tne conlplexity t.xia o al system according to the features of the preferred and growing scale-free networks in this system. What＇s more, this paper provides the evaluation of the ecological industrial system＇s application by the method basing on the similarity contribution of the nodes importance evaluation. We determine the importance of the enterprise by calculating its NR value. This paper gives a guidance to the enterprise who has entered or wants to enter the ecological industrial system by applying our result to the management practice. Also, it gives an idea of the further research complex network application in the bust- hess.