Aimed at the problem in measuring the utility value of supply chain network in information sharing, this paper proposed a utility value model of supply chain network based on different information sharing strategies. Through the analysis of the research status of sharing information in supply chain at present stage, this paper discusses the feasibility of applying Metcalfe's law to measure the utility value of network which was generated by information sharing in the supply chain network. In a

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... upply chain network composed of retailers and multiple vendors as the research object, it also explained respectively the method for measuring the utility value of supply chain network when the sharing arise between "supplier-retailer" and "supplier-supplier-retailer" and calculated the utility value of network under the different information sharing strategies of the supply chain network with the number of suppliers within 30. This model further validated that the utility value of supply chain network is directly proportional to the number of enterprises nodes in a network and the full information sharing of supply chain network is the most desirable strategy to improve the efficiency of supply chain network.