To cope with the problem of the global agricultural environment, food security, and the crisis of sustainable agricultural development, the Food and Agriculture Organization (FAO), together with other relevant national organizations and several countries, launched the Globally Important Agricultural Heritage Systems (GIAHS) in 2002. The Qingtian Rice-Fish system was designated as China's first GIAHS and was included in the first batch of GIAHS pilot sites, in 2005. Since then, study of systematic agricultural heritage and its conservation and development has progressed in China. On the basis of a comprehensive collection of relevant studies, the author reviews the main achievements in conservation and development of China-Nationally Important Agricultural Heritage Systems (China-NIAHS) over the past 15 years. At the present stage, the core contents of study on agricultural heritage are focused on two aspects. One is the benefit of exploration with multi-functional development. Another is dynamic conservation with adaptive management. There are many controversies around the concept and connotation of agricultural heritage, which, in turn, promote the understanding of this new type of heritage. The sustainable mechanism within agricultural heritage gives itself value diversity. Study about the value of agricultural heritage highlights the significance of conservation. The development of multi-functional industrials based on its multi-functional value is the pathway for the development of China-NIAHS, including the production of high-quality and characteristic local agricultural products, the development of ecotourism, and the development of cultural industries. To carry out dynamic conservation and adaptive management, the establishment of "five in one" benefit-sharing, multi-stakeholder mechanisms, legally guaranteed incentive mechanisms, government-leading, multi-financing mechanisms, and multi-disciplinary scientific support mechanisms are indispensable. Although China has made great progress in the study of agricultural heritage, it still needs to carry out additional research through heritage resources surveys, regular patterns of system evolution, and sustainable mechanisms, as well as perform more applicable research in framework and mechanism construction and paradigms of dynamic protection. Multidisciplinary comprehensive studies are necessary as well.
