Abstract: Abstract: Agricultural circular economy is the harmonious development mode of population, resources, environment and the development of modern agricultural growth. Agricultural circular economy is not only an important method to the transformation of the mode of agricultural development in China, but also the important content of the development of green sustainable agriculture to follow China's 13th five-year national development planning proposal. The construction of the standard system of agricultural circular economy is the basis and leading work for the development of circular economy, and the establishment of the standard system is also the key technology and management basis for the development of agricultural circular economy. This paper puts forward the concept of agricultural circular economy in China, and then the research status of the present situation and the main problems of agricultural circular economy both at home and abroad are summarized. It is found that the developed countries have accumulated many successful experiences in the field of agricultural circular economy, but the standard system of agricultural circular economy has not been established. Furthermore, this paper summarizes the research progress and practice in the construction of the standard system of agricultural circular economy in China. This paper focuses on the key links of modern agriculture in the irrigation water, pesticide, fertilizer, energy, land, farming, labor, materials, and comprehensive utilization of wastes, and the agricultural system is divided into 5 stages: Design and development, resource conservation, production and processing, circulation and consumption, recycling and disposal. The systematic and comprehensive characteristics of agricultural circular economy are fully considered, and the construction method, basic structures, three-dimensional structure including industry chain, domain chain and hierarchy chain, construction principles and structure diagram of the standard system of agricultural circular economy are clarified based on the agricultural industry chain and the life cycle of agricultural products. Standard system for agricultural circular economy in China are advanced, and the standard system are divided into basic standards, general management standards, integrating industrial chain standards, methods and specification standards. Finally, the relationship of standard system for agricultural circular economy in China, ecological agriculture and organic agriculture is analyzed, and some relevant standards are put forward for prior setting in accordance with the principle of priority combined with the actual needs of the agricultural circular economy in China. At present, the urgent need to develop the individual criteria mainly includes: agricultural circular economy notation and terminology, classification and code; agricultural circular economy guide for standardization; agricultural solid waste comprehensive utilization technology assessment guidelines; material flow analysis method, ecological efficiency and standard calculation method; agricultural circular economy standardization work guidelines. The formulation of standard system for agricultural circular economy in China ensures the compilation order of the single standard, reduces the standards that are repeating and contradictive, and increases the cohesion and the reasonable matching and composition between the single standard. The standardization and regularization of agricultural circular economy in China are conducive to the improvement of management standardization level of agricultural circular economy, and promote the standardization development of agricultural circular economy in China.