As　a　key　research　material,　graphene　has　high　thermal　expansion　coefficient　and　heat　conductivity.　FBG　with　cladding　by　coated　graphene　can　effectively　improve　temperature　sensing　characteristics　according　to　the　temperature　sensing　principle　of　FBG.　Firstly,　after　removing　the　coating　on　FBG　surface　with　acetone　and　stripping　pliers,　graphene　nanosheets　were　deposited　on　the　cladding　material　of　FBG　by　a　simple　evaporative　deposition　method.　The　temperature　sensing　sensitivity　13.05　pm/degrees　C　was　obtained　in　experiment　after　linear　fitting　of　data,　which　was　about　67%　higher　than　that　of　bare　FBG　of　7.82pm/degrees　C.　Secondly,　in　order　to　improve　the　purity,　compactness　and　controllable　thickness　of　the　coatings,　we　deposit　graphene　films　of　FBG　cladding　with　coating　process　in　vacuum　by　pulsed　laser　deposition　(PLD)　technology.　Finally,　the　temperature　sensing　sensitivity　of　the　FBG　sensor　coated　with　graphene　thin　film　by　PLD　reached　17.31　pm/degrees　C,　which　was　about　120%　higher　than　that　before　deposition.　Moreover,　the　whole　temperature　sensing　system　of　FBG　with　cladding　graphene　film　has　simple　structure　and　high　practicability.