Lead-free　0.85(Bi(1/2)Na(1/2))TiO(3)-　0.10(Bi(1/2)K(1/2))TiO(3)-　0.05BaTiO(3)　(BNKB)　ceramics　with　Li(2)CO(3)　or　(Bi(1/2)Li(1/2))TiO(3)　(BLT)　added　were　fabricated　by　a　conventional　solid　oxide　route.　The　XRD　analysis　indicates　that　Li(2)CO(3)　introduction　leads　to　the　increasing　of　fraction　of　tetragonal　phase　while　the　BLT　introduction　does　in　a　reverse　tendency.　Meanwhile,　the　depolarization　temperature　T(d)　of　Li(2)CO(3)-added　BNKB　ceramics　was　enhanced　obviously　while　that　of　BLT-added　BNKB　ceramics　went　down　as　the　addition　amount　increased.　The　similarity　in　variation　of　the　phase　structure　and　the　T(d)　of　BNKB　ceramics　reveals　the　nature　of　Li(+)　introduction　source　on　phase　structure　in　BNKB　ceramics.