Abstract: Liuhe village began ecological agriculture construction in 1986 according to the principles of ecological economy and methods of systematic engineering, a series of practices have been applied, such as regulating the ratio of farming to lives-tocks, planting more grasses and trees.combining biological practices with engineering practices, and some effective farming techniques. After tow-year work, they have got obvious benefits. The total value of farming and livestocks output is as much as 2.6 times of that in 1984 and the total production of grains and beans in-creases 2.1 times than in 1985. The farming environment improves.We assess the agroecosystem in Liuhe village by the method of Fuzzy.