▎ 摘　　要

NOVELTY - Preparation of hydroxyapatite/graphene oxide composite material involves dissolving hydroxyapatite in an acidic environment, adding a complexing agent, adjusting pH value, filtering, subjecting to lyophilization, obtaining flaky self-assembled hydroxyapatite microsphere crystals, mixing resultant with dispersed graphene oxide solution, washing, and freeze-drying in an oven for 24-48 hours. USE - Preparation of hydroxyapatite/graphene oxide composite material used for bio applications. ADVANTAGE - The method enables simple preparation of hydroxyapatite/graphene oxide composite material without adding crosslinking agent.