During　the　whole　life　cycle　of　solid　rocket　motor　(SRM),　shell　damage　and　propellant　interface　debonding　will　occur,　which　will　destroy　the　structural　integrity　of　SRM.　Therefore,　it　is　necessary　to　monitor　the　SRM　health　status,　and　the　existing　nondestructive　testing　technology　and　the　designed　optical　fiber　sensor　cannot　meet　the　monitoring　requirements.　In　order　to　solve　this　problem,　this　paper　uses　femtosecond　laser　direct　writing　technology　to　write　high　contrast　short　femtosecond　grating　array.　A　new　packaging　method　is　proposed　to　enable　the　sensor　array　to　measure　9000　mu　epsilon.　It　solves　the　grating　chirp　phenomenon　caused　by　stress　concentration　in　the　SRM,　and　breaks　through　the　key　technology　of　fiber　optic　sensor　implantation　in　the　SRM.　The　shell　pressure　test　and　strain　monitoring　inside　the　SRM　during　long-term　storage　are　realized.　For　the　first　time,　the　experiments　of　tearing　and　shearing　specimens　were　simulated.　Compared　with　the　results　of　computed　tomography,　it　proves　the　accuracy　and　progressiveness　of　implantable　optical　fiber　sensing　technology.　Combined　with　theory　and　experiment,　the　problem　of　SRM　life　cycle　health　monitoring　is　solved.(c)　2023　Optica　Publishing　Group　under　the　terms　of　the　Optica　Open　Access　Publishing　Agreement