Abstract: The contents, measures and purposes of optimization of the ecological environment for animal proudction were reviewed in this paper.Optimization of biotic and abiotic environmental factors were involved,but that of the abiotic should have the first priority. Optimization of abiotic environmental factors included the microclimate, full application of morden scientific and technological achievements and improvement of management to increase the productivity of animal-poultry.As for the biotic factors, the utilization of genetic predom inance of animals and poultry and the control of diseases Were of great importance.Some waste materials produced in the animal production may become environmental pollutants, so proper treatment techniques of the waste materials should be taken as a part of optimization of the ecological environment in animal production. Pathogenes would be eliminated and clean energy and high-quality fertilizer could be obtained when the waste materials was used to produce bio-gas. That was an important tendency of Organic waste treatment at present.The purposes of optimization of the ’ecological environment in animal production are to increase the output and to raise the quality of animal-poultry production so as to meet the people’ s needs of agricultural products.