Perovskite types (1 - x)[PMN-PT(65/35)]-xPZ (with x = 0, 0.1, 0.3, 0.5, 0.7 and 0.9) piezoelectric ceramics were prepared by a modified columbite precursor method. The lattice parameters of the (1 -x)[PMN-PT(65/35)]-xPZ ceramics increase with the addition of larger Zr4+ ion compared to that of other B-site ions. The SEM photographs of all the samples with different PZ content exhibit homogeneous and dense microstructure. The P-E loops indicate the PMN-PT-PZ ternary system has excellent ferroelectric properties. Both d (33) and k (p) dependences in PZ content show similar variation. Introduction of a small amount of PZ content in the PMN-PT(65/35) ceramics enhanced the relaxor behavior, which was confirmed by studying frequency and temperature-dependent dielectric behavior. The increasing values of diffuseness parameter obtained from the fit of a modified Curie-Weiss law established the relaxor nature.