The CuBBiO4-(Ba0.8Sr0.2)（Ni1/3Nb2/3）-(Ba0.8Sr0.2)（Zr0.5Ti0.5）(BBC-BSNN-BSZT) piezoelectric ceramics were prepared by the conventional two-step solid-state reaction method. The effect of CuBBiO4(BBC) content on the microstructure, phase structure, dielectric, piezoelectric and sintering temperature of BSNN-BSZT ceramics was investigated. It was found that the as-prepared ceramics were pure perovskite phase without any other second phase; the BBC addition could not only promote the sintering by forming a liquid phase during the perovskite sintering process，but also improve the performances of the resultant ceramics．The experimental results showed that, with addition of proper amount BBC as sintering aid，the sintering temperature of BSNN-BSZT ceramics could be brought down to 925 ℃. Furthermore, BBC-doping can also improve the Curie temperature, which increases from 158 ℃ to 230 ℃ with increase of BBC contents. When doped with 0.75wt% BBC and sintered at 925 ℃ for 4 h，the BSNN-BSZT ceramics achieved optimum properties with d33=613 pC/N，kp=0.7，εr=3 926，tanδ= 0.005 2，Qm=70 and the curie temperature TC=227 ℃.