This　study　proposes　a　high-yield　strength　and　high-toughness　transformation-induced　plasticity　(TRIP)　titanium　alloy　design　strategy,　utilizing　deformation-induced　metastable　β-phase　and　localized　TRIP　effects,　while　optimizing　its　fabrication　through　a　short-process　thermomechanical　treatment.　The　results　show　that　rolling-induced　metastable　β-phase　can　undergo　localized　TRIP　effects　during　plastic　deformation,　significantly　enhancing　the　yield　strength　(1250　MPa)　of　the　alloy　and　avoiding　the　issue　of　yield　strength　drop　in　traditional　TRIP　titanium　alloys　caused　by　large-scale　SIM　(stress-induced　martensitic　transformation).　Furthermore,　SIM-dislocation　interactions　provide　a　dynamic　strengthening　mechanism,　enabling　the　alloy　to　achieve　high　strength　while　maintaining　excellent　strength-ductility　synergy.　Meanwhile,　a　short-process　fabrication　route　combining　solution　treatment　and　deformation-induced　β-phase　stability　tuning　eliminates　the　aging　treatment　required　in　conventional　titanium　alloys,　significantly　reducing　manufacturing　costs　while　enhancing　feasibility　for　large-scale　industrial　applications.　This　design　strategy,　which　leverages　deformation-induced　metastable　structures　and　localized　TRIP　effects,　achieves　ideal　mechanical　properties,　offering　new　insights　for　the　development　of　high-strength　and　high-toughness　materials.　©　2025　Elsevier　B.V.