▎ 摘　　要

NOVELTY - The preparation method of ion-induced assembling graphene coating involves adding 1 pt. wt. graphene oxide, 20-500 pts. wt. solvent, and 0-1 pt. wt. 25% aqueous ammonia to a container, stirring to obtain graphene oxide dispersion, adsorbing ion crosslinking agent solution on a substrate, immersing substrate in the graphene oxide dispersion, leaving to stand for certain time, adhering graphene oxide to substrate, gel or freeze drying to obtain graphene oxide coating, and heat treating or chemically reducing the graphene oxide coating. USE - Preparation of ion-induced assembling graphene coating (claimed). ADVANTAGE - The method enables the preparation of ion-induced assembling graphene coating easily by simple process, and controls the thickness of coating from micron to millimeter.