This　study　investigates　the　influence　of　torsional　deformation　with　different　equivalent　strains　on　the　microstructural　evolution　and　mechanical　properties　in　pure　copper　at　room　temperature.　The　grain　size　exhibits　a　gradient　distribution　pattern　with　decreasing　shear　strains.　Texture　analysis　reveals　the　development　of　a　typical　torsion　texture　during　deformation.　And　the　texture　component　is　significantly　influenced　by　the　strain　level.　In　samples　subjected　to　low　strain　at　the　center　position,　the　dominant　texture　components　are　mainly　A　and　A*　components.　As　strain　increases　in　the　1/4　layer　sample　region,　there　is　a　gradual　decrease　in　strength　for　A*　component,　while　A　component　remains　dominant;　additionally,　B　and　C　textures　exhibit　increased　strength.　At　positions　subjected　to　maximum　strain　near　the　surface　area,　B　texture　replaces　A　as　the　strongest　texture　component.　Results　also　indicate　that　torsional　deformation　enhances　hardness,　strength,　and　plasticity　due　to　dislocation　strengthening,　fine　grain　strengthening　and　synergistic　effects　during　deformation.　Furthermore,　the　formation　of　torsional　texture　during　this　process　may　contribute　to　improved　plasticity.