Flexible　and　wearable　textile　-based　triboelectric　nanogenerators　(TENGs)　have　attracted　extensive　attention　in　wearable　electronics　owing　to　their　ability　to　convert　waste　mechanical　energy　from　human　motion　into　electrical　energy.　However,　the　performances　of　TENGs　are　lower　than　those　of　planar/film　configurations　due　to　the　complex　fiber　fabrications　and　limited　mechanical　freedom.　In　this　work,　we　demonstrate　an　extrusion　method　combined　with　thermal　drawing　(ETD　method)　for　continuous　and　scalable　triboelectric　fiber　fabrication,　providing　longitudinal　uniform　fibers　for　hundreds　of　kilometers.　Based　on　the　ETD　method,　super　-elastic　microstructured　triboelectric　fibers　(SMTFs)　were　fabricated,　consisting　of　hollow　elastomeric　and　liquid　metal　cores　(EGaIn).　The　SMTFs　showed　excellent　superelasticity　with　clear　and　uniform　microstructures.　The　fibers　could　withstand　strain　up　to　1800%　and　exhibited　excellent　electrical　output　performance.　Utilizing　a　single　fiber　as　the　medium　for　triboelectric　energy　collection,　the　average　open　circuit　voltage　and　instantaneous　power　density　are　respectively　up　to　210　V/m　and　21　mu　W/m　with　a　40　M　omega　external　load　resistance.　The　SMTFs　could　also　be　woven　into　deformable　textiles　with　high　electrical　outputs　up　to　160　V,　10　mu　A,　and　50　nC.　In　addition,　the　SMTFs-based　textiles　were　further　demonstrated　as　completely　soft　and　stretchable　components　for　self　-powered　sensing　in　smart　home　applications.