▎ 摘　　要

NOVELTY - The graphene-based terahertz electromagnetic stealth material comprises porous graphene foam with pore size of 50 plus minus 10 mu m. USE - Graphene-based terahertz electromagnetic stealth material. ADVANTAGE - The graphene-based terahertz electromagnetic stealth material ensures enhanced electromagnetic stealth performance and strong absorption in wide band at different incident angles. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of graphene-based terahertz electromagnetic stealth material, which involves (1) uniformly dispersing monolayer graphene oxide in a solvent to obtain a dispersion, (2) performing high-temperature solvothermal reaction of the dispersion under closed conditions to obtain graphene foam, (3) drying the graphene foam and (4) baking the dried graphene foam at high temperature in an inert atmosphere.