Abstract: Agroecology is being strongly recommended and widely extended today in China. In view of the current vague understanding and difficulties in ecological agriculture, this article reviewed briefly the historical track and realistic reason of agroecology practices, and various approaches to sustainable agricultural development at home and abroad. The concept and theory of agroecology practices were summarized and the multiple ways for implementation are introduced. In order to make agroecology become a mainstream practice in agriculture, the problems of agroecology evaluation, potential realization, market renovation, policy support and public participation were discussed. Finally, the opportunity and trend of agroecology development in the future were prospected.