Digital agriculture is the only way for the development of agricultural modernization. With the rapid development of modern society, the explosive growth of agricultural data and the rapidly updated and iterative big data technology provide a new path for the development of precision agriculture. Digital agriculture has begun to become a banner leading the development of high‐quality agriculture. By introducing the existing problems in the current agricultural field, introducing the concept of digital agriculture, and analyzing its sources and development conditions. Combine the agricultural industry chain with the application of big data, analyze the process of big data to realize precision agriculture, and make suggestions on the problems existing in the application of agricultural big data at this stage.