▎ 摘　　要

NOVELTY - Preparing graphene dispersion liquid involves providing dispersant which comprises nano sized graphene oxide which is having average particle diameter of 70 microns, mixing dispersing agent and solvent uniformly, carrying out ultrasonic auxiliary stirring to obtain final product. USE - Method for preparing graphene dispersion liquid used in lubricating material, thermally conductive material, antistatic material, conductive ink, electromagnetic shielding material for electronic product, conductive additive for lithium ion battery, and microwave absorbing material (claimed). ADVANTAGE - The method enables to prepare graphene dispersion liquid in simple manner, is stored for long time, and has pi bond and hydrophilic groups, good solubility in solvent, improves dispersibility of graphene, and has uniform dispersion and high concentration.