▎ 摘　　要

NOVELTY - Graphene strip is prepared by dispersing graphene oxide in water to obtain graphene oxide suspension with concentration of 0.01-100 g/L, adding chemical etchant, stirring and heating to thicken to color paste, filtering, washing until pH is 6-8, drying, heating and reacting under protection of inert gas at greater than or equal to 200 degrees C, and cooling to obtain graphene strip with length of greater than or equal to 1 mm. USE - Preparation of graphene strip for electronics. ADVANTAGE - Preparation of graphene strip is low-cost. DESCRIPTION OF DRAWING(S) - The drawing shows a graph of the x-ray diffraction pattern of graphene oxide and reduced graphene oxide. (Drawing includes non-English language text).