Abstract: The strategy of "carbon peaking and carbon neutrality goals" demands the new energy storage devices to have higher energy density and lower cost.Lithium-sulfur batteries have become the most potential battery system in the field of energy storage due to their advantages of low cost, environmentalfriendly feature and high specific energy (2600 Wh kg-1), which have received extensive attention and investigation.In recent years, lithium-sulfur batteries have made a series of progress, but still face some problems and challenges, including the poor charge transfer efficiency of sulfur, the "shuttle effect" of soluble polysulfides, severe volume expansion during charge and discharge, and lithium dendrite growth, etc.These problems can lead to performance degradation or even failure of lithium-sulfur batteries.Beneficial from the advantages of porous, high conductivity, light weight, and large specific surface area, carbon-based sulfur hosts can effectively solve the above-mentioned problems and have become an important research areas in the field of lithium-sulfur batteries.There are various types of carbon materials, including carbon nanofibers, carbon nanotubes, carbon nanosheets, and carbon nanoflowers.Carbon-based materials with various morphology or size could have different effects on the performance of lithium-sulfur batteries.Herein, this review focus on the development of carbon-based sulfur hosts for high-performance lithium-sulfur batteries.We summarize the one-dimensional, two-dimensional, and multi-dimensional composite carbon-based sulfur hosts, and discuss their dimensional effects on the electrochemical performance of the sulfur cathodes.Lastly, the future research directions are prospected.