A　temperature-insensitive　strain　sensor　based　on　a　microwave　photonic　filter　(MPF)　is　proposed.　A　Mickelson　interferometer,　formed　by　two　identical　chirped　fiber　Bragg　gratings　(FBGs),　together　with　a　broadband　optical　source,　a　phase　modulator,　a　dispersion　compensation　fiber,　and　a　photodetector,　forms　the　MPF.　Due　to　the　dispersion　effect　of　chirped　FBG,　the　wavelength　shift　caused　by　strain　will　result　in　changes　in　signal　transmission　latency,　which　will　then　cause　a　drift　on　the　central　frequency　of　the　MPF.　An　experiment　was　conducted　to　validate　the　proposed　scheme.　Experimental　results　show　that　frequency　shift　of　MPF　in　response　to　strain　with　a　sensitivity　of　2.0　GHz　is　obtained　for　a　measurement　range　of　0~1.8　mΕ.　Besides,　the　system　keeps　stable　within　a　temperature　range　from　30　°C　to　100　°C.　©　2023　SPIE.