Flood and drought alternate frequently in hillocky area of the Four-river valley in Hu' nan province because of the soil and water loss for many years. The interweaving situation of outside flood and inside waterlogging is getting more and more seriousin Dong-ting lake plain. Though soil and water conservation eco-environment construction has gained certain achievements for the last several years,the speed of the construction is still restricted. The causes are that they lacks funds,the strength of enforcing the law is small,the content of science and technology is less. The guarantee mechanism of soil water conservation eco-environment of the whole province is brought up. That is to set up and perfect the funds channel,to support with science and technology to supervise enforcing the law,to manage and to build it altogether. Strengthen the construction power so as to realize the near-term,mid-term and long-term objectives of soil and water conservation eco-environment construction in Hu' nan province.