The evaluation index system of water ecological civilization is the technical means to measure the construction of water ecological civilization city, and provide theoretical reference for the construction of ecological civilization city. On the basis of reviewing the relevant literature of the domestic evaluation system, this paper constructs the evaluation index system by using the PSR conceptual framework, uses the analytic hierarchy process and the entropy method to judge the weight of the evaluation index, and introduces the matter element analysis method to comprehensively evaluate the urban water ecological civilization construction The water quality, water ecology, water use, water management and water culture of water ecological civilization were studied respectively. The comprehensive evaluation index system was constructed and Nanchang from 2006 to 2015 was evaluated as a case study. The results showed that: the water ecological civilization level in 2006-2008 assessed as "general", 2008-2013 as "good ", and 2014-2015 as "excellent ". Nanchang shows an optimistic developing trend as the water ecological civilization city, grade and most indicators are increasing year by year, and the water ecological civilization city construction work is progressing smoothly.