采用Ｘ射线衍射、扫描电镜和差热分析等手段，研究了钙磷化合物－镁铝尖晶石（ＣＰ－Ｓｐｉｎｅｌ）复合生物材料的微观结构、力学性能和生物学特性。结果表明，Ｓｐｉｎｅｌ的加入显著地提高ＣＰ材料的力学性能，在高温下它还阻止磷酸钙发生相转变，从而保证了该材料的生物活性及适合于人体骨需求的力学性能．ＣＰ－Ｓｐｉｎｅｌ材料具有很好的生物相容性，无毒无刺激性，溶血指数小于２％。 The microstructure, mechanical properties and biological properties of CP-Spinel composite biomaterials were studied by means of X-ray diffraction, scanning electron microscopy and differential thermal analysis. The results show that the addition of Spinel significantly enhances the mechanical properties of CP materials, and at high temperatures it also prevents the phase transition of calcium phosphate, thus ensuring the biological activity of the material and the mechanical properties suitable for human bone needs. CP-Spinel material has good biocompatibility, non-toxic non-irritating, hemolysis index less than 2%.