Abstract: Under the background of an international complex situation and global extreme weather, the transformation of traditional agricultural production mode is urgent. As an advanced stage of agricultural modernization, smart agriculture is an important driving force to promote the high-quality development of agriculture. This paper selected relevant kinds of literature in the field of smart agriculture research from 2009 to 2022, sorted out the research status of smart agriculture, explains its concept and characteristics, and analyzed and summarizes the current research hotspots in the field of smart agriculture in China. Agriculturally developed countries have launched major strategic projects to support the development of smart agriculture, and their technology research and development are leading the world. Domestic research mainly involves three aspects: technology research and development, practical application, and countermeasures, but there are still some practical problems such as core technology subject to people, lack of quantitative index evaluation system, and risk research of smart agriculture. From the perspective of the whole industrial chain of smart agriculture, future research needs to make joint efforts in key technologies and core equipment, top-level design planning, and development programs.