The　prosperous　development　of　stretchable　electronics　poses　a　great　demand　on　stretchable　conductive　materials　that　could　maintain　their　electrical　conductivity　under　tensile　strain.　Previously　reported　strategies　to　obtain　stretchable　conductors　usually　involve　complex　structure-fabricating　processes　or　utilization　of　high-cost　nanomaterials.　It　remains　a　great　challenge　to　produce　stretchable　and　conductive　materials　via　a　scalable　and　cost-effective　process.　Herein,　a　large-scalable　pyrolysis　strategy　is　developed　for　the　fabrication　of　intrinsically　stretchable　and　conductive　textile　in　utilizing　low-cost　and　mass-produced　weft-knitted　textiles　as　raw　materials.　Due　to　the　intrinsic　stretchability　of　the　weft-knitted　structure　and　the　excellent　mechanical　and　electrical　properties　of　the　as-obtained　carbonized　fibers,　the　obtained　flexible　and　durable　textile　could　sustain　tensile　strains　up　:to　125%　while　keeping　a　stable　electrical　conductivity　(as　shown　by　a　Modal-based　textile),　thus　ensuring　its　applications　in　elastic　electronics.　For　demonstration　purposes,　stretchable　supercapacitors　and　wearable　thermal-therapy　devices　that　showed　stable　performance　with　the　loading　of　tensile　strains　have　been　fabricated.　Considering　the　simplicity　and　large　scalability　of　the　process,　the　low-cost　and　mass　production　of　the　raw　materials,　and　the　superior　performances　of　the　as-obtained　elastic　and　conductive　textile,　this　strategy　would　contribute　to　the　development　and　industrial　production　of　wearable　electronics.