In this paper, it was selected 17 quantifiable indicators of environment carrying capacity evaluation system to evaluate the environment carrying capacity of Poyang lake National Wetland Park through relative surplus ratio model of regional environmental carrying capacity. Through the analysis of the relative residual rate of the environmental element it was found that the environmental carrying capacity of the areas include atmospheric environment, water environment and ecological environment was not overload. However, there was respectively one indices of its relative surplus rate greater than zero in the layer of economic development and population pressure under the human environment，the relative surplus rate of the remaining 7 indicators were less than zero. The results showed that the natural environment of Poyang Lake National Wetland Park is better and the human environment is poor. However, the comprehensive environmental carrying capacity of Poyang Lake Wetland Park was 0.199>0, which shows that the regional comprehensive environmental carrying capacity has not yet been overloaded. On the whole, resources and environment in the region is relatively coordinated with the development of human economy and society.