In this study, three types of BaTiO
_{3}
powders with different particle sizes synthesized by hydrothermal method were used to fabricate the lead-free barium titanate piezoelectric ceramics. The BaTiO
_{3}
ceramics from these three types of BaTiO
_{3}
powders were sintered at different temperature(1150–1350°C) using traditional sintering method, and their piezoelectric properties were investigated and compared. The results indicate that the BaTiO
_{3}
piezoelectric ceramics from BT03 powder exhibit highest
d_{33}
value (over 350 pC/N). The reasons were also investigated by comparing the properties of three kinds of BaTiO
_{3}
powders and their compacts sintered at different temperature.
