Abstract: The eco-environment of Baiyangdian Lake Watershed was evaluated by using GIS technology. The results show that the exponent of eco-environmental status is 53.05 graded as“general grade”.This grade of eco-environmental status has a medium vegetation coverage and biodiversity with suitable environment for human living.The limiting factors for human living in the area are water density and environmental quality,which are lower,11.18 and 12.68,respectively.