▎ 摘　　要

NOVELTY - Graphene-reinforced silicon carbide-based complex material comprises a three dimensional porous graphene and silicon carbide grown in-situ in three-dimensional porous graphene, where the content of three-dimensional porous graphene is less than or equal to 50 vol%, preferably 10-50 vol%. USE - Used as graphene-reinforced silicon carbide-based complex material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the material, comprising taking methyltrichlorosilane and methyl dichlorosilane as a precursor and hydrogen as a carrier gas, performing the three-dimensional porous graphene to densification treatment by chemical vapor infiltration technique.