The　plastic　deformation　of　the　material　is　called　dynamic　plastic　deformation　when　the　strain　rate　is　higher　than　102　s-1.　In　comparison　with　quasi-static　plastic　deformation,　the　dynamic　plastic　deformation　involves　highly　localized　deformation　and　more　complex　mechanisms　which　can　have　a　significant　impact　on　the　properties　and　life　of　materials.　As　a　special　deformation　structure　in　the　process　of　dynamic　plastic　deformation,　adiabatic　shear　band　has　attracted　great　attention　because　of　its　influence　on　material　properties.　Because　of　its　excellent　mechanical　properties,　titanium　alloy　is　widely　used　in　many　industries　as　structural　material.　Because　of　its　wide　application,　titanium　alloy　will　often　face　failure　caused　by　adiabatic　shear　band　formation　in　dynamic　load,　so　as　to　reduce　and　shorten　the　service　life.　Therefore,　the　study　on　the　formation　mechanism　of　adiaba-tic　shear　band　in　titanium　alloy　is　of　great　significance　to　prolong　the　service　life　of　titanium　alloy　and　improve　the　mechanical　properties　of　titanium　alloy.　However,　due　to　the　transient　of　dynamic　plastic　deformation　and　the　complexity　of　internal　stress,　it　is　difficult　to　reappear　the　formation　of　adiabatic　shear　band.　Meanwhile　the　complexity　of　the　structure　and　the　instability　of　phase　in　the　process　of　deformation　increase　the　difficulty　of　observing　the　adiabatic　shear　band　in　titanium　alloy.　Through　a　large　number　of　experimental　observation　and　simulation　calculation,　it　is　generally　believed　that　the　formation　mechanism　of　adiaba-tic　shear　band　in　titanium　alloy　is　dynamic　recrystallization.　At　present,　there　are　four　mainstream　viewpoints　in　the　process　of　dynamic　recrystallization,　namely,　traditional　dynamic　recrystallization,　continuous　dynamic　recrystallization,　twin　dynamic　recrystallization　and　phase　transformation　induced　dynamic　recrystallization.According　to　different　dynamic　recrystallization　methods,　the　researchers　established　the　basic　deformation　mo-del　and　theoretical　basis,　and　found　some　experimental　evidence.　In　this　review,　some　typical　research　results　reported　in　recent　years　dealing　with　the　adiabatic　shear　bands　about　their　morphology,　properties　and　related　formation　mechanisms　in　titanium　alloys　subjected　to　dynamic　plastic　deformation　are　summarized.　Typical　formation　mechanisms　of　adiabatic　shear　bands　and　related　problems　for　titanium　alloys　are　discussed　so　as　to　provide　useful　information　for　future　research.　©　2021,　Materials　Review　Magazine.　All　right　reserved.