Abstract: TiO₂ film containing SrFe₁₂O₁₉ was coated on the surface of NiTi alloy and 316L stainless steel and the bond strength of film-matrix was investieated.The forming process,surface morphology and the structure of SrFe₁₂O₁₉ were studied by XRD and SEM.Blood compatibility of the film was evaluated by dynamic clotting time and hemolysis rate tests.All results showed that the dynamic clotting time of 316L stainless steel and NiTi alloy with surface modification was improved,and hemolysis rate was decreased and the TiO₂ film contained SrFe₁₂O₁₉ had excellent blood compatibility.