▎ 摘　　要

NOVELTY - The method for preparing graphene-based honeycomb pyramidal absorbing material, involves (1) adding graphene oxide, acetylene black, two-component resin, absolute ethanol, dispersant and wetting agent in mass ratio of (50-65):(6-10):(1800-2000):(300-400):(1.3-3):(0.9-2) to obtain graphene composite slurry, (2) processing the honeycomb core material into a pyramid shape to obtain honeycomb pyramid, (3) diluting the graphene composite slurry with absolute ethanol, then placing the honeycomb pyramid in diluted graphene oxide composite slurry, placing the impregnated honeycomb pyramid in varnish, (5) curing the protected honeycomb pyramid, and (6) fixing the cured honeycomb pyramid to the surface of backboard. USE - Method for preparing graphene-based honeycomb pyramidal absorbing material for use in microwave darkroom (claimed). ADVANTAGE - The method enables preparation of graphene-based honeycomb pyramidal absorbing material with strong absorption of electromagnetic waves, special design of honeycomb hole, heat dissipation effect and long service life.