▎ 摘　　要

NOVELTY - Surface modification method of carbon fibers involves adding deionized water to graphene oxide, ultrasonically-treating for 10-50 minutes and obtaining 0.02-1 g/L aqueous solution of graphene oxide, carrying out electrochemical deposition of aqueous solution of graphene oxide and de-sized carbon fibers at DC voltage of 5-25V and 30-50 kHz, and then drying. USE - Surface modification method of carbon fibers (claimed). ADVANTAGE - The method efficiently and economically provides surface modified carbon fibers by using reduced amount of chemicals and by reduced environmental pollution.