In　this　work,　we　elucidate　the　influence　of　Bi0.5Li0.5ZrO3(BLZ)　content　on　the　phase　structure,　microstructure,　and　electrical　properties　of　(1　-　x)K0.40Na0.60Nb0.965Sb0.O-035(3)-xBi(0.5)Li(0.5)ZrO(3)　lead-free　ceramics.　We　simultaneously　achieved　a　giant　d(33)　and　a　high　T-c　in　this　material　system.　The　coexistence　of　rhombohedral　and　tetragonal　phases　is　responsible　for　such　a　large　d(33)　in　the　ceramics　with　BLZ　contents　(x)　ranging　from　0.025　to　0.035.　Doping　with　BLZ　not　only　induces　the　formation　of　the　phase　boundary,　but　also　maintains　a　high　T-c.　The　ceramic　with　x　=　0.03　shows　an　enhanced　piezoelectric　behaviour　(d(33)　similar　to　400　pC　N-1　and　K-p　similar　to　0.47)　together　with　a　high　T-c　of　292　degrees　C.　A　good　temperature　stability　for　ferroelectricity　and　piezoelectricity　is　also　observed　in　these　ceramics.　This　study　is　the　first　time　that　such　a　good　comprehensive　performance　has　been　obtained　in　potassium-sodium　niobate　materials.　We　believe　that　this　type　of　material　system　possessing　giant-d(33)　and　high-T-c　is　a　promising　candidate　for　use　in　high-temperature　piezoelectric　devices.