Abstract: Abstract:The Science and Technology Backyard is a new exploration in the process of agricultural modernization with Chinese characteristics. The model of Science and Technology Backyard pioneered by universities in China recently has Reshaped the agricultural technology extension service system，providing effective assistance for small-scale farmers around the world to shake off poverty and increase income. The Science and Technology Backyard dates back to the rural construction movement during the Republic of China period. It originates from the establishment of the Quzhou Experimental Station of China Agricultural University and the construction of agricultural technology promotion network. Since its birth in 2009, the Science and Technology Backyard in China have gone through three stages, namely, exploration, growth, and development. In the new era, the Science and Technology Backyard has positive significance, becoming a new handle to promote comprehensive rural revitalization, a new tool to cultivate new agricultural productivity, a new practice to integrate education, science and technology, and talents as well as a new Platform to Implement key core technology research in agriculture. In the future, the development of Science and Technology Backyard will present five major trends, namely, diversified participation forces, clustered spatial layout, internationalized brand influence, professionalized service functions, and digitalized operation and management.