Part I The concept and developmental tendency of Ecological Economics 2.The developmental tendency of E.E 2.1 The origin of E.E Human's consideration on previous relationship among ecology,technology and economy The enlightenment of sustainable development thought &The promotion of modern science and technology &The result of ecology and economics fusionPart I The concept and developmental tendency of Ecological Economics 2. The developmental tendency of E.E 2.1 The origin of E.E Human’s consideration on previous relationship among ecology, technology and economy The enlightenment of sustainable development thought The promotion of modern science and technology The result of ecology and economics fusion