▎ 摘　　要

NOVELTY - Preparation of a graphene dispersion liquid comprises agitating graphene and cyclodextrin in an agate mortar at a mass ratio of 1:(0.2-64); adding alcohol; grinding the mixture for 2-4 hours; drying at 40-100 degrees C to obtain a mixture; and carrying out ultrasonic dispersion of 0.1-2 g mixture in 10 mL solvent at 20-40 KHz and 200-700 W for 30 minutes to 3 hours. USE - Method for the preparation of a graphene dispersion liquid (claimed) used for constructing graphite vinyl composite material, solar battery, and super capacitor. ADVANTAGE - The graphene dispersion liquid has high stability, good dispersibility, low production cost, requires simple technique and simple equipment, and has high yield.