$(Ba_{0.85}Ca_{0.15})(Ti_{0.9}Zr_{0.1})O_3$ + 0.04 wt% $CeO_2$ lead-free ceramics were prepared by conventional oxide-mixed method and the effect of sintering temperature on microstructure, dielectric and piezoelectric properties were investigated. Improved piezoelectric properties have been observed at $1,400^{circ}C$ sintering temperature which show the optimal electrical properties, $k_p{sim}0.412$, $d_{33}{sim}316pC/N$, $Q_m{sim}144$, ${varepsilon}_r{sim}3,345$ and $T_c{sim}85^{circ}C$. These results show that the sintering temperature plays an important role in piezoelectric properties.