As　possible　alternatives　to　traditional　thermoelectric　(TE)　materials,　carbon　nanomaterials　and　their　hybrid　materials　have　great　potential　in　the　future　application　of　flexible　and　lightweight　temperature　detection.　In　this　work,　an　integrated,　highly　flexible,　and　tailorable　TE　temperature　detector　with　high　performance　has　been　fabricated　based　on　a　continuous　single-walled　carbon　nanotube　(SWCNT)　fiber.　The　detector　consists　of　more　than　one　pairs　of　thermocouples　composed　of　p-type　SWCNT　fiber　and　n-type　SWCNT　hybrid　fiber　in　situ　doped　by　polyethylenimine.　Due　to　the　node　contact　mechanism　of　the　detection,　the　sensitivity　of　the　detector　can　be　improved　with　the　increase　of　the　number　of　p-n　thermocouples,　independent　of　the　length　of　the　thermocouple.　The　temperature　detection　process　of　the　detector　has　been　studied　in　detail.　In　particular,　the　integrated　and　flexible　detector　can　be　divided　into　several　sub-detectors　easily　by　cutting,　illustrating　the　prospect　of　large-scale　preparation　of　this　kind　of　novel　temperature　detectors.　Its　high　flexibility　ensures　the　detector　to　maintain　excellent　detection　performance　after　15　000　bending　circles.　Furthermore,　the　as-designed　TE　type　temperature　detector　demonstrates　a　great　application　promise　for　real-time　temperature　detection　and　temperature　change　sensing　even　in　complex　surface　and　harsh　environment.