In this work, Li₂CO₃ was added into 0.7${\text{BiFeO}}_{3^{?}}$0.3${\text{BaZr}}_{0.02}$${\text{Ti}}_{0.98}$${\text{O}}_{3^{?}}$0.01molMnO₂ (70BFBTMn) piezoelectric ceramics to reduce their sintering temperatures. 70BFBTMn ceramics were sintered by a conventional solid reaction method, and their structural, dielectric, piezoelectric and ferroelectric properties were studied. These results indicate that 0.5% (mole) Li₂CO₃ is the optimized content and it can reduce the sintering temperature by 100${}^{°}$C, making the possibility of the piezoelectric ceramics cofiring with Ag electrodes at low temperatures to manufacture multilayer piezoelectric actuators.In this work, Li₂CO₃ was added into 0.7${\text{BiFeO}}_{3^{?}}$0.3${\text{BaZr}}_{0.02}$${\text{Ti}}_{0.98}$${\text{O}}_{3^{?}}$0.01molMnO₂ (70BFBTMn) piezoelectric ceramics to reduce their sintering temperatures. 70BFBTMn ceramics were sintered by a conventional solid reaction method, and their structural, dielectric, piezoelectric and ferroelectric properties were studied. These results indicate that 0.5% (mole) Li₂CO₃ is the optimized content and it can reduce the sintering temperature by 100${}^{°}$C, making the possibility of the piezoelectric ceramics cofiring with Ag electrodes at low temperatures to manufacture multilayer piezoelectric actuators.