This　paper　investigates　the　dual-parameter　sensing　of　temperature　and　strain　using　π-phase-shifted　fiber　Bragg　gratings　(π-PSFBGs).　In　many　practical　engineering　applications,　temperature　and　strain　are　often　present　simultaneously,　which　can　interfere　with　each　other＇s　sensing.　To　achieve　dual-parameter　sensing　of　temperature　and　strain,　two　π-PSFBGs　are　modified　with　phase-shifted　peaks　of　1547　nm　and　1550　nm,　respectively.　The　π-PSFBG　of　1547　nm　is　wrapped　with　a　heat　shrinkable　tube　to　increase　its　temperature　sensing　sensitivity　by　185.6%,　while　its　strain　sensing　sensitivity　is　reduced　by　91.083%.　The　π-PSFBG　of　1550　nm　is　coated　with　indium　tin　oxide　(ITO)　film　using　the　pulsed　laser　deposition　(PLD)　method　to　increase　its　temperature　sensing　sensitivity　by　22.3%,　while　its　strain　sensing　sensitivity　is　reduced　by　16.03%.　Finally,　the　two　modified　π-PSFBGs　are　cascaded　to　realize　dual-parameter　sensing　of　temperature　and　strain.　The　ITO　film　coating　on　the　surface　and　heat　shrinkable　tube　wrapping　can　reduce　the　interference　of　external　light　on　the　signal　light　and　protect　the　fiber　grating.　By　setting　the　optical　spectrum　analyzer　(OSA)　accuracy　to　0.02　nm,　the　sensing　information　can　be　extracted　by　scanning　within　a　few　nanometers,　and　the　sharp　phase-shifted　peak　of　the　π-PSFBG　helps　accurately　locate　the　signal　wavelength.　The　results　demonstrate　the　potential　for　the　practical　application　of　the　proposed　dual-parameter　sensing　method.　©　2023