Under the background of a large population in China, the land resources available for farming are very limited, and in the process of agricultural production. Only the application of the traditional mode will inevitably limit the development of agriculture and the gradual improvement of farmers' living standards. Based on this, the inevitable measure to be taken in the current agricultural development process is to introduce advanced technology to promote the continuous improvement of China's agricultural development level. On the basis of the continuous development of the Internet of Things, cloud computing, big data, and other technologies, through the integration of a variety of technologies, the new pronoun of smart agriculture in the agricultural field is generated. The realization of green, standardization, intelligence, and other agricultural production links is the purpose of smart agriculture, which is very beneficial to the development of optimized human needs. Therefore, it is very necessary to discuss the development of electronic information engineering and smart agriculture. Through the active introduction of electronic information engineering technology, agricultural production efficiency can be further improved to realize the sustainable development of smart agriculture.