▎ 摘　　要

NOVELTY - A method for preparing a water-phase graphene dispersion liquid by employing ultrasonic stripping comprises: (1) adding 1 part of graphite to 500-10000 parts of a lignin amphiphilic polymer solution with a mass concentration of 0.1-10 g/l; (2) carrying out ultrasonic stripping at 20-60 degrees C for 10-100 hours by using an ultrasonic cleaning machine; and (3) centrifugally separating to obtain to obtain a high concentration aqueous dispersion of graphene, having a concentration of 0.10 g/l. The amphiphilic polymer lignin is at least one of lignin sulfonate, lignin polyoxyethylene ethers and carboxymethylated lignin, or a lignin sulfonate and bromotetradecane copolymer. USE - Method for preparing high concentration aqueous phase graphene dispersion by ultrasonic stripping (claimed). ADVANTAGE - The method is economical and environment-friendly. The utilization rate of raw materials is improved, and the industrialization cost is reduced