The　fiber　grating　sensor　with　its　unique　advantages　in　the　structural　health　monitoring　used　and　more　extensive.　Based　on　Fiber　Bragg　Grating　as　an　example,　this　paper　expounds　the　FBG　sensor　system　integration　method,　the　principle　of　fiber　grating　sensors,　aiming　at　temperature　drift　characteristics　of　FBG,　proposes　a　new　method　of　temperature　drift　compensation　by　using　metal　platinum　resistance.　On　the　other　hand,　the　existing　fiber　grating　monitoring　system　is　used　mostly　in　the　series　of　topological　way,　which　impacts　of　the　sensor＇s　survival　rate,　this　paper　proposes　a　new　method　of　combining　the　series-parallel　topological　way,　using　relatively　cheap　couplers,　increasing　the　survival　rate　of　the　sensor,　thus　improving　the　efficiency　of　structural　health　monitoring.　©　(2011)　Trans　Tech　Publications.