As an important logistics hub in China,the energy structure of the port collection and distribution network has a particularly significant impact on carbon emissions.Taking carbon emissions of the container collection and distribution network of Guangzhou Port as the research object,we disscuss the impact of adjusting the energy structure on carbon emissions of the container collection and distribution network of the port.By establishing a carbon emission calculation model,we analyze the impact of different transportation modes,energy types and transportation distances on carbon emissions.The results show that the use of clean energy instead of traditional energy,such as natural gas and pure electric instead of diesel and other fuel oils,can significantly reduce carbon emissions of the port collection and distribution network.