Abstract: In the context of the construction of digital China and the goal of “dual carbon”, it is of great significance to explore the impact of rural digital infrastructure on agricultural carbon emission intensity. Based on panel data from 30 provinces in China from 2011 to 2021, this paper empirically examines the impact of rural digital infrastructure on agricultural carbon emission intensity using the spatial Durbin model. The results show that agricultural carbon emission intensity has a significant spatial positive correlation. The improvement of rural digital infrastructure can significantly reduce the carbon emission intensity of local agriculture. In general, there is a spatial correlation between rural digital infrastructure and agricultural carbon emission intensity. The improvement of local digital infrastructure has a certain spillover effect on agricultural carbon emissions in neighboring areas. The results of the robustness test show that the model conclusions have strong consistency and reliability. Based on the research conclusions, some suggestions are put forward, such as increasing the investment and promotion of rural digital infrastructure, and giving full play to the spatial diffusion effect of digital infrastructure.