Abstract: Poyang Lake Region is one of the most important agricultural bases in Jiangxi Province,however,its ecoenvironment is facing threatening.This paper discusses the effects of various activities such as the traditional cultivation.the development of township and village enterprises,the low awareness on environmental protection of the local farmers,and the reclaimation of farmland from the Lake etc on eco-environment of the Lake.The measures for harnessing those activities have been put forward.