Abstract: Based on the data of agricultural nonpoint source pollution emissions and economic development indicators from 1995 to 2010 in Zhejiang Province， we used EKC model to verify whether the relationship between Zhejiang agricultural nonpoint source pollution and economic development showed inverted Ushape The results showed that the curve which represents the relationship between Zhejiang agricultural nonpoint source pollution emissions and the real GDP per capita was a typical inverted Ushape curve At present， it is the turning period of Zhejiang agricultural nonpoint source pollution and the pollution emission will reduce as the economy developed However， since EKC is just a description of the future trend of environmental quality， not a forecast There are still many problems in EKC theory， such as econometric model problem， metrics problem and so on Thus its wrong to believe the EKC hypothesis without thinking Environmental quality will not improve automatically； the agricultural environment of Zhejiang province is still facing triple pressure of rapid economic growth， environmental quality improvement and environmental risk prevention We can improve environment by carrying out economic and environmental policy， improving peoples quality and using technology.

Key words: EKC, agricultural nonpoint source pollution, economic development, Zhejiang Province