Bismuth potassium titanate, (Bi 1/2 K 1/2 )TiO 3 (BKT), ceramics were prepared by the hot-pressing (HP) method without dopant and with dopants of Bi 2 O 3 , La 2 O 3 and MnCO 3 . The relative density of BKT ceramics hotpressed at 1,060 and 1,080°C (hereafter abbreviated to BKT-HP1060°C and BKT-HP1080°C) and x mass% Bi 2 O 3 , La 2 O 3 and MnCO 3 doped BKT ceramics hot-pressed at 1,060°C (hereafter abbreviated as BKTBix; x=0.1-0.6, BKTLax; x=0.1-0.6 and BKTMnx; x=0.1-0.3) were all higher than 97%. In this study, the ferroelectric properties of BKT ceramics were successfully obtained, and the remanent polarization P r and coercive field E c of BKT-HP1080°C were 22.2 μC/cm 2 and 52.5 kV/cm, respectively. A small amount of La tends to increase P r , and the P r of BKTLa0.1 was 19.2 μC/cm 2 . The piezoelectricities were improved to optimize poling conditions, and the electromechanical coupling factor k 33 and piezoelectric constant d 33 of BKT-HP1080°C were 0.34 and 82.8 pC/N, respectively.