Ho3+-modified SrBi4Ti4O15 ceramics with bright green light emission and enhanced electrical properties were fabricated by a conventional solid-state reaction method. Upon visible light irradiation, samples exhibit a strong green emission located at 546 nm and a weak red emission at 653 nm. These two emissions corresponding to the intra f-f transition from the excited state S-5(2) to the ground state I-5(8) and the F-5(5) -> I-5(8) transition of Ho3+, respectively. The relative intensity of green and red emissions is related to the Ho3+ contents closely, due to the concentration quenching effect. Moreover, it is also found that Ho3+ doping significantly enhanced the electrical properties. At x = 0.008, samples exhibit optimal electrical properties and excellent piezoelectric temperature stability for the SBT-xHo system. These results reveal that these materials have good application prospect in future optical temperature sensors by integrating its luminescent and piezoelectric properties. (C) 2017 Published by Elsevier B.V.