The Pb(Ni1/3Nb2/3)x(ZryTiz)1-xO3(PNNPZT) ceramics samples are prepared through a mixed oxide powder solidstated method. The Xray diffraction(XRD) and scanning electron microscopy(SEM) were adopted to investigate the crystallographic phase and microstructure. The experimental results show that when the other experiment conditions were the same, the electric properties of the PNNPZT samples prepared by two different purities chemicals Ni2O3 A and B have an obvious difference, the ceramics prepared with Ni2O3 chemical A have an optimum electrical properties as follows: piezoelectric constant d33=680 pC/N,electromechanical coupling coefficient kp=0.62,εr=7 200,dielectric loss tan δ=0.023.But the ceramics prepared with the Ni2O3 chemical B have a poor electric properties as follows：d33=430 pC/ N,kp=0.50,εr=8 530,tan δ=0.054.