Harmful environmental impacts induced by conventional farming have been recognized by more and more people. Organic agriculture, a new model for farming development, has set itself the goals of environmental pollution minimization and sustainability of agricultural production. In recent ten years, organic agriculture deve loped and extended rapidly around the world. Comparing to conventional agriculture, risks of environmental damage brought by organic agriculture are much less. The objective of this paper is to give an overview of the organic agriculture status and its benefits on water, soil and atmospheric environment, biodiversity and human health.