In　recent　years,　the　optical　fiber　sensing　technology　has　attracted　social　more　and　more　attention　because　it　has　advantages　of　strong　anti-interference　ability,　corrosion　resistance　and　high　sensitivity.　So　the　research　of　the　optical　fiber　sensing　technology　has　become　a　hot　issue　for　researchers.　Fiber　Bragg　grating(FBG)　sensing　is　a　kind　of　optical　fiber　sensing,　and　the　transmission　spectrum　or　reflection　spectrum　is　affected　by　the　change　of　external　environment.　The　research　of　this　topic　is　tilted　fiber　Bragg　gratings(TFBG),　there　are　core　modes　and　a　large　number　of　cladding　modes　in　the　transmission　spectrum　of　TFBG　sensor,　which　will　change　with　the　change　of　the　external　environment,　so　it　is　of　great　significance　to　study　its　transmission　spectrum　with　the　external　changes.Firstly,　the　temperature　and　refractive　index　sensing　performance　of　TFBG　by　Optigrating.　Then　we　measures　the　temperature　sensing,　refractive　index　sensing　and　strain　sensing　of　the　TFBG　sensor,　and　the　tilt　angle　is　8　degrees,　the　period　is　530nm,　the　modulation　depth　is　grater　than15dB,　and　the　experimental　results　are　consistent　with　the　simulation　results.　We　obtained　that　the　temperature　sensitivity　of　the　TFBG　is　10pm/degrees　C　in　the　measurement　range　of　20　degrees　C-150　degrees　C,　and　the　refractive　index　sensitivity　is　3.2pm/%　in　the　range　of　0-25%NaCl　solution,　and　the　stress　sensitivity　is　1.593nm/mm　in　the　range　of　0-1.2mm　tensile　length　in　our　experiment.　Therefore,　the　TFBG　sensor　has　important　applications　in　many　fields.