Abstract: Based on the panel data of 30 provinces （municipalities and autonomous regions） in China from 2013 to 2022, the level of agricultural green development was comprehensively measured, and an empirical model was constructed to study the heterogeneity, intermediary effect and threshold effect of digital economy on agricultural green development. The results showed that digital economy had a promoting effect on the green development of agriculture, and there was regional heterogeneity; the digital economy could indirectly improve the level of agricultural green development through green technology innovation; the impact of digital economy on green development of agriculture had a double threshold effect in the eastern region. Therefore, it was necessary to strengthen the construction of agricultural digital infrastructure, narrow the differences in the development of digital economy in various regions, promote the green development of agriculture with the support of technology, and improve the awareness of the governance of the agricultural ecological environment.

Key words: digital economy, green development of agriculture, mechanism analysis