In order to understand the research hotspot and future development trend of digital agriculture, taking the database of China National Knowledge Network (CNKI) as the data source, CiteSpace software was used to conduct a quantitative analysis of 551 literatures with the keyword "digital agriculture". The analysis content mainly focused on the number of publications, core authors and keywords from 2000 to 2022. The results showed that: digital agricultural research output showed a rapid rising trend; the number of papers published by core authors in this field is small, and the influence of core institutions still needs to be improved and spread; smart agriculture, internet of things and digital economy are hotspots in this field. Therefore, future research needs to solve practical problems in agricultural development on the basis of the combination of "Internet" and agricultural development.