Porous　NiTi　alloys　have　gained　prominence　in　biomedical　and　aerospace　applications　owing　to　their　exceptional　specific　strength　and　biocompatibility.　In　this　study,　inspired　by　the　twin　strengthening　in　metallurgy,　the　twin-oriented　Gyroid　TPMS　lattice　metamaterials　were　designed.　The　effects　of　twin-oriented　design　on　the　static　mechanical　properties,　energy　absorption　capacity　and　fatigue　properties　of　TPMS　lattice　metamaterials　were　studied　by　uniaxial　compression　and　compression-compression　fatigue　tests.　The　results　indicate　that　the　twin-oriented　design　enhances　the　superelasticity,　carrying　capacity,　energy　absorption　capacity　and　fatigue　properties　of　the　lattice　metamaterials.　TG　design　achieves　a　32.2%　enhancement　in　effective　energy　absorption　capacity　compared　to　conventional　TPMS　structures.　Furthermore,　increasing　the　number　of　ordered　Gyroid　unit　cell　arrangements　at　each　coordinate　in　the　spatial　geometric　coordinate　system　contributes　to　improved　carrying　capacity　of　the　structure.　Strengthened　twin　boundaries　effectively　suppress　fatigue　crack　initiation　and　propagation　across　the　twin-oriented　surfaces.　The　optimized　architecture　significantly　improves　fatigue　strength　ratio　and　overall　fatigue　resistance.　This　strategic　design　prevents　catastrophic　failure　under　adverse　loading　while　enabling　controllable　crack　path　formation.　In　this　study,　the　mechanical　responses　and　fatigue　behaviors　of　TPMS　lattice　metamaterials　are　regulated　by　twin-oriented　design　for　the　first　time,　which　provides　a　novelty　insights　for　developing　high-performance　NiTi　structures　with　tunable　damage　tolerance　and　excellent　fatigue　ability.　©　2025　Elsevier　Ltd