In　recent　years,　gradient　nanotwinned　copper,　which　features　dual　gradients　in　twin　boundary　spacing　(TBS)　and　grain　size　(GS),　has　become　a　focal　point　of　research　in　the　materials　science　field.　This　structure　has　been　proven　to　be　an　excellent　nanotwinned　system　with　a　highly　controllable　microstructural　gradient.　In　this　study,　a　new　inverse　gradient　nanotwinned　(IGNT)　copper　structure　model　is　constructed,　where　TBS　and　GS　exhibit　opposite　trends.　Molecular　dynamics　simulations　are　employed　to　explore　the　effect　of　the　TBS　gradient　on　the　deformation　behavior　of　this　nanomaterial.　In　this　study,　it　is　found　that　the　strength　of　IGNT　copper　increases　with　a　larger　TBS　gradient.　By　analyzing　the　microstructural　characteristics,　it　is　observed　that　as　the　TBS　gradient　increases,　the　dislocation　density　gradually　decreases　and　the　fraction　of　hexagonal　close-packed　atoms　increases,　leading　to　enhanced　material　strength.　Additionally,　with　a　higher　TBS　gradient,　the　appearance　of　hexagonal　close-packed　atomic　lines　traversing　the　grains　effectively　hinders　dislocation　motion,　further　improving　the　material＇s　strength.　In　this　research,　new　insights　are　offered　into　the　design　of　gradient　nanotwinned　copper　structures　and　important　theoretical　support　and　guidance　are　provided　for　enhancing　the　mechanical　properties　of　gradient　nanotwinned　copper.