The analysis of environmental Kuznets curve on wastewater emissions and chemical oxygen demand contributes to the management of water pollution for township enterprises in Guangxi. By means of processing related data of statistical yearbook from 2001 to 2011,the paper obtained economic data of Guangxi township enterprises and two kinds of water environmental pollution index data.Based on the principle of EKC, the regression analysis method,it analyzed the relationship between water pollution and economic development in township enterprises of Guangxi.The results show that wastewater emission and chemical oxygen demand do have significant correlation with township economy.The relationship curve presents N type and U type. Furthermore,the N type curve appears two inflection points in 2005 and 2007, while the the lowest point of U type curve appears in 2007. The amount of pollution discharge is in the rising stage.