Abstract: In order to clarify the water resources carrying status of Yancheng City,the coordinated development degree was selected as the evaluation index of the water resources carrying status and the combination weighting method based on game theory was used to determine the weights in the index.And the state of water resources carrying capacity of Yancheng City from 2008 to 2017 was evaluated and the obstacle factors were analyzed.The results showed that the overall water resources carrying status of Yancheng City was improving continuously,turning from poor to medium.The lowest coordinated development degree was 0.296 in 2012 and the highest degree was 0.721 in 2015.The main obstacle factors were the water quality standard rate of water function area,vegetation coverage rate in built-up area,centralized sewage treatment rate,per capita GDP and the proportion of ecological water use.The obstacles of water quality related index was relatively large,and the obstacles of economic and social water use index were relatively small and tend to decrease.Based on the results of evaluation and analysis,some suggestions and measures were put forward for Yancheng City to improve the water resources carrying state,such as wastewater interception and emission limitation,strengthening greening and so on.