Due to the increasing consumption of non-renewable petroleum resources

the exploitation and utilization of biomass renewable resources has become a global research hotspot. Lignin has a wide range of sources. It belongs to renewable low-cost resources

and carbon content is higher than 60%. It has attracted much attention of carbon fiber research and development researchers. In recent years

many breakthroughs have been achieved in research and development. Starting from the generalization of the pretreatment of lignin spinning

the development progress

mechanic performance comparison and latest research progress were reviewed on the hotspots of the lignin based carbon fiber such as pure lignin based carbon fiber

blending and grafting of modified lignin carbon fiber

and the prospect of lignin carbon fiber research was also prospected.