▎ 摘　　要

NOVELTY - Preparing graphene-CCTO-based ceramic complex dielectric material comprises dissolving a metal ion source in a solvent, and mixing to obtain a precursor sol of a CCTO-based ceramic material, allowing the precursor sol of the CCTO-based ceramic material to stand for aging, adding the graphene oxide dispersion, mixing, drying to obtain a precursor dry powder of the graphene-CCTO-based ceramic material, grinding the precursor dry powder of the graphene-CCTO-based ceramic material into a fine powder, irradiating under a low power laser to obtain a graphene-CCTO-based ceramic complex powder, subjecting the graphene-CCTO-based ceramic complex powder to compaction molding and synthesizing under a high power laser to obtain the graphene-CCTO-based ceramic complex dielectric material. USE - The material is useful for giant dielectric materials in high density memory devices. ADVANTAGE - The material has fine particle size, good compactness and large dielectric property and the method is economical and fast.