▎ 摘　　要

NOVELTY - Preparing graphene composite carbon felt involves soaking the carbon felt in an acid solution and mixing. The soaked carbon felt is washed repeatedly with deionized water, and dried. The sugar is dissolved in deionized water and prepared a solution with a mass fraction of 2-8 wt.%. The graphene oxide is added to the solution. The dried carbon felt is soaked in the solution and mixed. The carbon felt is dried after soaking and mixing. The dried carbon felt is placed in a vacuum furnace, heated to 1300-1550 degrees C, kept warm for 3-6 hours, and cooled. USE - Method for preparing graphene composite carbon felt. ADVANTAGE - The method enables to prepare a graphene composite carbon felt having good hydrophilicity, high electrical conductivity, good stability, high electrochemical catalytic activity, easy-to-obtain raw materials, non-toxicity, excellent cost, simple operation, and is suitable for large-scale production.