With the rapid development of information technology, smart agriculture, as an important direction for modern agriculture, is gradually becoming a key force in promoting the transformation and upgrading of agriculture in China. This article provides a review of the current research status of smart agriculture both domestically and internationally, and explores its specific practice and development trends in China. This article points out that smart agriculture can not only improve agricultural production efficiency and product quality, but also provide new ideas for solving many problems faced by traditional agriculture. At the technical level, the application of emerging technologies such as the Internet of Things, big data, and cloud computing has made the agricultural production process more intelligent and precise; In terms of management, emphasis is placed on optimizing resource allocation and improving service efficiency by building a comprehensive service platform. In addition, policy support is crucial for the development of smart agriculture. The government should increase investment in infrastructure construction and talent cultivation, establish and improve relevant legal and regulatory systems to ensure data security. At the same time, we encourage all sectors of society to actively participate in the construction of smart agriculture, forming a good situation of multi-party collaboration. Finally, this article proposes several directions that future smart agriculture needs to focus on: first, deepening technology research and development; second, strengthening cross disciplinary cooperation; third, emphasizing the summary and promotion of practical experience.