[Objective] The spatiotemporal evolution pattern and driving factors of carbon emissions at the county level were determined in order to provide a scientific basis for the practical application of a regional planning strategy that would meet the "dual carbon" goal.[Methods] Based on carbon emission data from the Dongrong development area in the Guangxi Zhuang Autonomous Region in 2005, 2010, 2015, and 2020, spatial autocorrelation analysis was used to calculate the spatio-temporal heterogeneity of carbon emissions among different regions. An index system was constructed, and geographic detectors were used to calculate the driving factors of the spatio-temporal evolution of carbon emissions.[Results] ① There was spatial heterogeneity in carbon emissions among the counties and districts in the Dongrong development area of the Eastern Guangxi Zhuang Autonomous Region. From 2005 to 2020, the carbon emissions in the space were characterized as being "high in the southwest and low in the northeast", and the carbon emissions of the economically developed districts and counties grew rapidly; ② The carbon emissions of the districts and counties showed a steady upward trend in general. The carbon emissions gap between districts and counties with different economic development levels gradually widened; ③ An analysis on the driving forces of spatial and temporal differences of carbon emissions showed that the influence of energy consumption structure and urban economic density was the strongest.[Conclusion] The spatial and temporal characteristics of carbon emissions in the Dongrong development area of the Eastern Guangxi Zhuang Autonomous Region were closely related to human activities. In order to meet the "dual carbon" goal, carbon emissions will need to be regulated.