Abstract: A systematic analysis of the spatiotemporal evolution characteristics of carbon emissions in urban agglomerations in the middle reaches of the Yangtze River is of great significance for promoting the coordinated peak of carbon emissions and achieving green integrated development. This article used the coefficient method to calculate carbon emissions, and further explored the spatiotemporal evolution characteristics and influencing factors of carbon emissions in urban agglomerations in the middle reaches of the Yangtze River from 2005 to 2020. The results showed that: （1） The overall carbon emissions showed a fluctuating growth trend, but the carbon emission intensity showed a decreasing marginal trend. （2） Carbon emissions exhibited a clear positive agglomeration layout of high-high and low-low modes. （3） Carbon emissions exhibited absolute club convergence with velocity heterogeneity, rather than σ- convergence and absolute β-convergence. （4） The scale of fiscal expenditure was the most important factor driving the growth of carbon emissions in the study area, followed by the level of economic development and urbanization. Energy structure and intensity certainly suppressed the growth of carbon emissions and were the main driving factors for promoting carbon reduction.