Abstract: The sustainable development of Jiangsu Province is restricted by the lack of self-supplying energy, environment capacity and the capability of regulating ecosystem. Based on the environment load control equation, the energy consumption wastaken as an indicated parameter to calculate and analyze the environmental loadof Jiangsu Province during the 2000-2005 period. The anticipative result of the environmental load in 2010, 2015 and 2020 show that the energy consumption of Jiangsu Province in 2010 will reach 230 million t and keep increasing at the rate 8.38% per year, if the GDP of Jiangsu Province increases at the rate 10% and the decreasing rate of energy consumption per ten thousand Yuan GDP maintains at3.23% levels of 2000-2004 years. In order to make the level of energy consumptionkeep at the level of 2005, the decreasing rate of energy consumption per ten thousand Yuan GDP should approach or equal to even more than 9.09%. At last, some interrelated suggestions are given to save and reduce energy consumption from the energy structure adjusting and the technique progress. These suggestions can helpcontrol the environmental load of Jiangsu Province and thereby reduce the pressure of energy shortage and environment pollution on the economic development.