In this paper, based on the general study on the values estimation flow and the values estimation methods of the Riverhead Area Ecosystem, and based on cases of the natural and social-economic characters of the Riverhead Area of East River and results of Costanza et al., the methods of ecological economics, welfare economics and ecology were applied to analyze the economic values on the Riverhead Area of East River.The results showed that the total values of the ecosystem services were 81x10⁸yuan, and it was 4.11 times as the GDP of the Riverhead Area of East River in 2004.At the same time, the estimated results are analysed.