Agro-ecological engineering is the significant content of eco-farm construction and is the important measures and technical means for the implementation of eco-farm construction. In substance, it applies principles of ecology and combines with system engineering methods and modern technical measures to establish the production mode for efficiently utilizing agricultural resources and implementing technical system of sustainable development in agriculture. This paper systematically summarizes the ten current technical types of agricultural eco-engineering in China：the agricultural and forestry three-dimensional structure eco-system type for fully utilizing space and land resources; multi-level and graded utilization of material energy; material circulatory ecosystem type of land and water exchange;bio-species symbiotic eco-system type for mutual promotion; agricultural-fishing-poultry aquatic eco-system type;multi-functional sewage self-purification system;comprehensive development compound eco-system in mountainous region; wetland eco-system type for resources development and utilization in coastal beach and marsh;courtyard eco-system type;and multi-functional joint eco-system type of agricultural, sideline production and industry.