Information sharing and value in construction supply chain

In order to improve information asymmetry in construction supply chain and keep effective information sharing seamlessly among parties involved, current narrow sense understanding of information sharing in construction industry was summarized firstly; then broaden content and essence of information sharing in construction supply chain was pointed out, that was not only information sharing which can be improved by information technology included, but certain asymmetric information which caused by different parties own interest also included in sharing scope. The essence of information sharing was making information symmetrical to each party; finally information value was calculated by setting up construction supply chain model. Conclusion is given that information sharing is basis for adding value to whole construction supply chain under the condition of risk & profit sharing.