According to clinical requirements for medical titanium alloys and flaw s existing in present medical titani um alloys,a new titanium alloy has been designed and prepared.Zr,Nb,Ta were selected for composing elements of the titanium alloy.Ti tanium alloy' s nominal composition is Ti-12.5Zr-2.5Nb-2.5Ta.Micrographs and mechanical pro perties of the new titanium alloy were analyzed and tested,the result shows that mechanical properties can meet design requirements.