The water-saving society evaluation index system of Jiangyin city was established from four aspects of water saving efficiency, water saving management, water saving protection and innovative work, and the construction of water saving society has also carried on the stage division. Through the determination of the weight of evaluation index by AHP, a comprehensive water saving society construction evaluation model based on the grey relational analysis method was established in Jiangyin city. The results showed that: the construction of water-saving society in Jiangyin had been generally in excellent stage. The industrial water recycling rate, water balance test rate, water saving carrier coverage rate, surface water quality compliance rate of functional areas and groundwater management level were all in good stage. The leakage rate of city water supply pipe network and water quota compliance rate were still at a medium level. Urban regeneration water reuse rate was only at the primary stage. The results can scientifically reflect the level of water saving society construction in Jiangyin City, guide the further implementation of water-saving society construction object, and also have reference significance for other cities building water-saving society.