▎ 摘　　要

NOVELTY - Preparing multifunctional epoxy resin-based water-soluble sizing agent containing graphene oxide comprises (i) reacting polyfunctional epoxy resin, amino compound containing alcoholic hydroxy group and diluent at 60-90 degrees C for 40-150 minutes, then lowering reaction temperature to 45-65 degrees C and adding carboxylic acid compound to continue reaction for 30-60 minutes to obtain water-soluble multi-functional epoxy resin, and (ii) mixing water-soluble polyfunctional epoxy resin and graphene oxide aqueous solution containing bionic compound, and stirring mixed solution at 0-30 degrees C. USE - The method is useful for preparing multifunctional epoxy resin-based water-soluble sizing agent containing graphene oxide (claimed). ADVANTAGE - The sizing agent has high cross-linking density, high glass transition temperature, excellent heat resistance and thermal stability, simple preparation process; and has improved processability inlcuding cluster property and abrasion resistance.