Radiative　thermal　management　has　attracted　increasing　attention　for　the　advantages　of　energy　saving　and　carbon　emission　reduction.　Infrared　radiation　coatings　are　widely　adopted　to　alleviate　the　low　infrared　emissivity　of　commonly　used　metal　alloy　electrothermal　materials.　However,　traditional　infrared　radiation　coatings　are　faced　with　the　issues　of　the　unsteady　waveband　emissivity,　low　interfacial　adhesion　to　substrates,　and　poor　long-term　thermal　stability.　Herein,　a　bush-shaped　vertical　graphene　(BVG)　grown　on　nichrome　(Ni-Cr)　wire　is　demonstrated,　relying　on　which　BVG/Ni-Cr　wire　presents　a　high　blackbody-like　emissivity　of　approximate　to　0.96　across　a　wide　wavelength　range　(2.5-18　mu　m).　When　used　for　radiative　heating,　BVG/Ni-Cr　wire　achieves　a　high　thermal　radiation　efficiency　with　an　order　of　magnitude　improvement　compared　with　bare　Ni-Cr　wire,　as　well　as　the　superior　deformation　and　thermal　stabilities.　These　findings　reveal　the　impressive　potentials　of　BVG　as　an　excellent　infrared　radiation　material　for　the　energy-efficient　radiative　thermal　management.