In this paper, in order to develop the composition ceramics with the outstanding piezoelectric properties, (Mg_{1/2} W _{1/2} )_{0.03} (OWNS_{1/3} Nb_{2/3})_{0.09} (Zr_{0.5} Ti_{0.5})_{0.88} O_{3} ceramics substituted with BiFeO_{3} were prepared by the conventional solid-state reaction method. The addition of small amount of Li2CO_{3} and CaCO_{3} as sintering aids decreased the sintering temperature of the ceramics. The effects of BiFeO3 substitution on their piezoelectric and dielectric properties were investigated. when 0.015 mol BiFeO_{3} was substituted, the optimal physical properties of d33=590 pC/N, Ec=8.78 kV/mm were obtained.
