Sr-2(Gd1-x-yErxYby)F-2/polyacrylonitrile(SGF-EY/PAN)　is　fabricated　with　nanocrystal-inlaid　fiber　(NIF)　structure　via　electrospinning,　which　possesses　synergistic　feedback　and　real-time　temperature　monitoring.　Under　near-infrared　laser　radiation,　SGF-EY　fibers　have　the　advantage　of　more　efficient　upconversion　luminescence,　which　is　a　viable　option　to　achieve　dual　thermal　feedback　at　specific　power　condition.　The　relative　sensitivity　(S-R)　of　the　principal　thermal　feedback　(I-523/I-540),　a　significant　portion　to　evaluate　the　reliability　of　temperature　monitoring,　reaches　a　maximal　value　of　0.856%K-1　at　303　K.　Additionally,　the　peak　ratio　of　the　523　nm　green　radiation　influenced　by　two-photon　absorption　and　the　410　nm　blue　radiation　controlled　by　three-photon　absorption　is　employed　as　an　auxiliary　indicator　(I-523/I-410)　that　attains　a　maximum　S-R　of　1.456%K-1　at　303　K,　providing　a　thermal　sensing　with　synergistic　response　effect.　The　nanocrystal-inlaid　pliable　fibers　with　dual　temperature　feedback　suggest　potential　application　prospects　in　the　fields　of　noncontact　biomedical　temperature　sensor,　aeronautical　engineering　probe　and　flexible　thermal　monitoring　component.