In this study, a novel (α+β) dual-phase Ti-19Nb-0.6O was developed and processed via additive manufacturing, featuring ultra-low Young′s modulus of 42 GPa approximating that of human bone, coupled with high strength (919 MPa), and 15% elongation.By utilizing post-heat treatment to adjust the distribution and content of the precipitated α phase, the elemental distribution of Nb and O between α and β phase was effectively manipulated, meanwhile, the β matrix stability was regulated, enabling the attainment of lower modulus and higher strength.These findings advance the development of biomedical titanium alloys produced using additive manufacturing, characterized by excellent mech. performance.