▎ 摘　　要

NOVELTY - Graphene-hydroxyapatite composite material preparation involves uniformly mixing 0.0l-3.0 mol/l graphene oxide solution or suspension and 0.5-5 mg/ml calcium ion to obtain a mixed solution A. Calcium and phosphorus are mixed in combined solution in molar ratio of 1.5-2.0:1, then 0.01-2.0mol/l phosphate are mixed and stirred by a magnetic stirrer to obtain a product. Mixed solution A is added into obtained product, and then uniformly mixed to obtain a solution. pH of obtained solution is adjusted by using pH adjusting agent to 8-14. USE - Method for preparing graphene-hydroxyapatite composite material (claimed). ADVANTAGE - The method enables preparing graphene-hydroxyapatite composite material with high mechanical strength and retaining bone activity at industrial level in a simple and eco-friendly manner. DETAILED DESCRIPTION - Graphene-hydroxyapatite composite material preparation involves uniformly mixing 0.0l-3.0 mol/l graphene oxide solution or suspension and 0.5-5 mg/ml calcium ion to obtain a mixed solution A. Calcium and phosphorus are mixed in combined solution in molar ratio of 1.5-2.0:1, then 0.01-2.0mol/l phosphate are mixed and stirred by a magnetic stirrer to obtain a product. Mixed solution A is added into obtained product, and then uniformly mixed to obtain a solution. pH of obtained solution is adjusted by using pH adjusting agent to 8-14. The mixed liquid is transferred into autoclave at 160-240 degrees C for 12 hours under hydrothermal treatment.