The　Gurson-Tvergaard-Needleman　(GTN)　model　has　been　improved　to　extend　its　application　for　high　strain　rate　loading　and　assessed　by　using　the　Taylor　impact　process　of　7xxx　aluminum　alloys.　The　existing　modification　method　based　on　independent　shear　damage　variables　has　been　integrated　into　the　enhanced　GTN　model　to　assess　shear　fracture.　In　addition,　the　effects　of　strain　rate　hardening,　temperature　softening,　and　viscosity　resistance　terms　have　been　taken　into　account　in　the　constitutive　equation　to　accurately　depict　the　material＇s　deformation　behavior　under　high　strain　rates.　A　series　of　quasi-static　mechanical　tests　and　Split　Hopkinson　Pressure　Bar　(SHPB)　tests　with　strain　rates　ranging　from　1000s(-1)　similar　to　5000　s(-1)　were　conducted　on　7A52-T6　alloy　and　7A62-T6　alloy.　The　Taylor　impact　experiments　showed　that　the　mushrooming　deformation　and　shear　fractures　occurred　as　the　impact　velocity　increased.　Both　the　7A52　and　7A62　alloys　exhibited　fracture　characteristics　of　shear　and　void　nucleation,　and　the　voids　only　grew　slightly　after　formation.　The　predicted　fracture　patterns　in　Taylor　impact　and　the　evolution　trend　of　material　strength　using　the　enhanced　GTN　model　are　consistent　with　the　experimental　results.