The　discourse　of　the　anisotropic　mechanical　properties　of　a　unit-built　additively　manufactured　component　depends　on　its　microstructural　features　and　inhomogeneous　distribution.　This　work　explores　the　microstructure　distribution　and　deformation　inhomogeneity　during　uniaxial　tension　of　a　laser　melting　deposited　TA15　near-alpha　titanium　alloy　via　advanced　in　situ　secondary　electron　microscopy　and　electron　backscattered　diffraction　characterization.　Microscopically,　two　major　regions　can　be　distinguished　in　the　overall　microstructure,　including　a　Widmanst　&　auml;tten　(alpha　w)　region　along　the　prior　beta-grain　boundary　(GB)　and　a　basketweave-alpha　region　within　the　columnar　grains.　These　two　different　microstructural　regions　responded　differently　under　the　same　tensile　load　conditions.　In　the　early　deformation　stage,　only　conventional　slip　occurred　in　the　basketweave-alpha　region,　whereas　microscale　shear　bandings　developed　in　both　the　basketweave-alpha　and　alpha　w　regions.　As　the　deformation　progressed,　the　strain　was　optimally　accommodated　by　the　basketweave-alpha　region.　Nevertheless,　the　largest　strain　accumulation　occurred　along　the　prior　beta-GB　because　of　a　high　misorientation　angle,　which　resulted　in　the　formation　of　cracks.　Subsequently,　the　growth　and　propagation　of　the　cracks　along　the　prior　beta-GB　were　relatively　fast　due　to　the　weak　obstruction　caused　by　the　low　angle　of　misorientation　in　the　alpha　w　region,　resulting　in　early　fracture　of　the　sample.