Through evolution,vertebrates have chosen the calcium phosphate mineral apatite to mineralize their teeth and bones.We based on the basic principles of biomineralization and added different reagents to the solution which contain Ca2＋ or Ca2＋-PO3-4.The products to appear different morphologies with changes in different reagents,and they were characterized by scanning electron microscopy（SEM） and powder X-ray diffraction（XRD） analysis.We discussed the reason why vertebrates utilize the calcium phosphate mineral apatite for structural support.%脊椎动物通过进化选择了磷灰石类矿物来构建其牙齿和骨骼。本文依据生物矿化原理,通过在相同的时间和温度下添加不同的模板或调控剂制备羟基磷灰碳酸钙,分别采用扫描电子显微镜（SEM）、傅里叶变换红外光谱（FT-IR）以及X—射线衍射（XRD）对所得产物进行了表征。同时对所得产物的晶型和形貌进行了分析,初步讨论了脊椎动物选择磷灰石作为结构材料的原因。
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