Abstract: This article firstly classifies the external resources into five innovation cycles, and then an open collaborative innovation network model is constructed. Furthermore, based on analysis on the collaboration modes including innovative initiatives, IPR transactions, joint projects and innovation alliance, six evaluation indexes are built including integration easiness, invested capital, collaboration guarantee, innovative capacity, communication easiness and contract-performing capability combining the ranking standard, then a DEMTEL-ANP based methodology is adopted to analyze the influence and correlation relationship. Afterwards, a fuzzy evaluation method through multiple experts’ viewpoints is utilized to assess the comprehensive capacities of external resources, in which a fuzzy instance measure method is adopted to compare the fuzzy numbers relating to each candidate. In the final, a case study was taken to verify the proposed theory and methodology, which comes up with a consistent evaluation result under different attitudes (conservative, risky and neutral) of experts. The outcome of this study can be of reference for those enterprises during their process of selection, evaluation and management of external resources under collaborative innovation scenario.