▎ 摘　　要

NOVELTY - A graphene nanomesh (GNMs) is prepared by preparing graphene oxide (GO) solution by performing Hummer's method, placing into freezer, freezing to obtain GO ice, crushing into small pieces, charging into tube, placing into freeze-grinding machine, and grinding under liquid nitrogen conditions. USE - Preparation of graphene nanomesh (claimed). ADVANTAGE - Preparation process has good repeatability, rich source of raw materials, and low cost, does not need chemical reagents, and is simple and environment-friendly. DESCRIPTION OF DRAWING(S) - The drawing shows a transmission electron microscope image of a graphene nanomesh.