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Eco-agriculture focuses on the green development of agriculture and it is an essential part of agricultural development in China and worldwide. As part of the first batch of national eco-agriculture construction pilot counties and one of the China Nationally Important Agricultural Heritage Systems（China-NIAHS）sites，Deqing County occupies a vital position in the practice of eco-agriculture in China. Thus, this paper traces the basic history of eco-agricultural practices and summarizes the current typical models of eco-agricultural development in Deqing County. In addition, this paper analyses the core connotations and primary values of the typical models of ecoagriculture in this county. The typical models include the“pearl mussel-fish-grain-mulberry-livestock”complex system, rice field ecological planting and breeding models, aquaponics, and agritourism. Additionally, this paper makes targeted suggestions to promote the sustainable development of eco-agriculture in Deqing County based on current problems and challenges. [ABSTRACT FROM AUTHOR]