对等离子喷涂 ＨＡ／Ｔｉ复合涂层进行模拟体液和体外细胞试验，以考察涂层的生物学性能，结果指出，涂层经模拟体液浸泡后，表面覆盖一层碳酸磷灰石（ｃａｒｂｏｎａｔｅ－ａｐａｔｉｔｅ），这表明涂层具有良好的生物活性．粗糙的涂层表面易于形成碳酸磷灰石．模拟体液的浓度太小或ＰＨ值太大，均会导致碳酸磷灰石层不能在涂层表面形成．体外细胞试验显示，成骨细胞能在涂层表面紧密贴壁并正常生长，显示涂层具有优良的生物相容性． The plasma spraying and HA / Ti composite coating were used to simulate the humoral and in vitro cell tests to investigate the biological properties of the coating. The results showed that the coating was soaked in simulated body fluid that the surface was covered with a layer of carbonate apatite, , Indicating that the coating has good biological activity. Rough coated surfaces tend to form carbonated apatite. Simulated body fluid concentration is too small or PH value is too large, can lead to carbonated apatite layer can not be formed in the coating surface. In vitro cell tests show that osteoblasts adhere closely and grow normally on the coating surface, indicating that the coating has excellent biocompatibility.