In　this　paper,　using　electron　backscatter　diffraction　(EBSD)　and　transmission　electron　microscope　(TEM)　characterization,　we　systematically　investigated　the　dynamic　recrystallization　(DRX)　mechanism　and　its　effects　on　the　texture　orientation　and　grain　refinement　of　Ti6Al4V　titanium　alloy　subjected　to　laser　shock　peening　(LSP).　The　results　indicated　shear　bands-induced　DRX　mechanism　played　a　vital　role　in　texture　transition　and　grain　refinement　during　LSP.　Based　on　the　observation,　the　DRX　mechanism　was　determined　as　continuous　dynamic　recrystallization　(CDRX).　Due　to　the　wide　range　of　local　misorientation　of　grains　within　shear　bands,　the　new　dynamic　recrystallized　grains　exhibited　preferred　selection　of　[1−21−0]　orientation,　thereby　resulting　in　the　original　[011−0]　fiber　component　weakening.　The　deformation　is　mainly　supported　by　basal　slip　and　pyramidal　slip　in　α　phase　during　LSP,　activating　massive　non-basal　dislocation　for　the　subsequent　CDRX　process.　The　more　nucleation　sites　available　closer　to　the　surface,　as　well　as　the　increasing　adiabatic　temperature　induced　by　ultra-high　strain　rate　deformation　there,　contributed　to　the　improved　DRX,　resulting　in　more　intense　grain　refinement　on　the　top　surface.　©　2020　Elsevier　B.V.