Abstract: Combined with the content of relevant policies, the connotation, extension and characteristics of national agricultural science and technology modernization pioneer county were explored. The research believed that pioneer county was an important initiative to promote the modernization of agricultural science and technology, rural revitalization and modernization of agriculture and rural areas. It could set an example for the modernization of agricultural science and technology in the whole country through the concerted efforts of co-construction units and the implementation of a series of key tasks,with six characteristics, including the specialization of leading industries, the modernization of industrial chain, the standardization of agricultural production, the mechanization of material and equipment, the greening of agriculture and rural areas, and the specialization of human resources. On this basis, the scientific issues that could be further explored in the future were put forward, in order to provide strong scientific and technological support for accelerating the modernization of agriculture and rural areas, and provide reference for the formulation of county policy and the implementation of decision making.

Key words: modernization of agricultural science and technology, pioneer county, connotation, extension, characteristic