In　this　work,　to　systematically　investigate　the　evolution　characteristics　of　electrical　properties　in　polymorphic　piezoceramics,　the　Ba(Ti0.92Zr0.08)O3　ceramics　are　selected　as　a　paradigm　that　possesses　all　the　general　phase　structures　above　room　temperature.　It　is　found　that　the　evolution　of　electrical　properties　with　temperature　change　can　be　divided　into　three　stages　based　on　phase　structure　transforming:　high　ferroelectric　and　stable　strain　properties　at　R　and　R-O,　high　ferroelectric　and　enhanced　strain/converse　piezoelectric　properties　at　O,　O-T,　and　T　phase,　and　the　rapidly　decreased　ferroelectric　and　strain　properties　in　T-C　and　C　phase.　However,　the　ferroelectric　and　strain　properties　all　increase　with　rising　electric　field　and　their　evolution　can　be　divided　into　two　parts　based　on　phase　structures.　The　high　property　and　slow　increase　rate　are　present　at　R,　R-O,　O,　and　O-T,　while　the　poor　property　but　a　high　increase　rate　is　present　around　T-C.　Similar　results　can　be　found　in　the　evolution　of　electrostrictive　property.　Finally,　the　highest　d33*　of　~1240　pm/V　and　Q33　of　~0.053　m4/C2　are　obtained　at　O-T　due　to　the　high　ferroelectricity　but　easy　domain　switching.　This　work　affords　important　guidance　for　the　property　optimization　of　polymorphic　piezoceramics.　©　2023　by　the　authors.