Abstract: The effects of the changes of Dongting Lake on agro-eco-environment of the Lake area have been discussed. It is concluded that the changes of the Lake has brought into a series of eco environmental problems such as the decline of the lake effect, the increase of the frequency of flood and water logging, the more serious of soil gleying, the prevalence of snail fever and the damage of aquatic resources. The strategy and the countermeasures for protecting and improving of the agro eco environment have been put forward. 

Key words: Dongting Lake, change, agro-eco-environment, effect, countermeasure