Pb(Ni 1/3 Nb 2/3 ) 0.5 (Ti 0.7 Zr 0.3 ) 0.5 O 3 (PNN-PZT) ceramic powders were pre-calcined by solid-state reaction method. PNN-PZT piezoelectric ceramics were fabricated by tapecasting process. The effects of sintering temperature on physical and electrical properties of the PNN-PZT ceramics were studied. The results show that the ceramics sintered at 1225 • C have the best overall properties, d 33 = 780 pC/N, ε r = 6.18 × 10 3 , k p = 0.6, tanδ = 0.017, P r = 26.36 µC/cm 2 . Compared to the ceramics with the same composition prepared by the traditional process, the properties of the ceramics prepared by tape-casting process have been improved greatly.