Based on the analysis of multi-objective utility function of multiple main bodies of super-huge type projects, this paper builds sustainable balanced value index model of super-huge type projects, points out the calculating principle and method for classified value index of economy, society and environmental ecology and combinational balanced value index, and makes calcula- tion case analysis based on "Three Gorges Project". Research shows that the size of sustainable balanced value index of super- huge type projects reflects the internal val...