The applied electric field to drive intended large strain response in Bi0.5Na0.5TiO3-based piezoelectric ceramics is usually high (mostly with E >= 60 kV/cm) and remains a long-standing drawback for actual actuator applications. In this work, we report aOE (c) 001 > oriented (1-x) (0.83Bi(0.5)Na(0.5)TiO(3)-0.17Bi(0.5)K(0.5)TiO(3))-xBaTiO(3) (BNT-BKT-BT) lead-free piezoelectric ceramics using BT as the template particles to tailor the strain behavior under a low driving field. The strain response exhibited an increasing trend with the increasing grain orientation, and remarkably giant S (max)/E (max) of 800 pm/V was acquired under a relatively low electric field of 45 kV/cm in the optimized microstructure for textured BNT-BKT-1BT ceramics compared with the reported lead-free Bi-based perovskite ceramics. Furthermore, the achieved textured ceramics showed prominent electric field- and temperature-dependent strain characteristic featured by both a high room-temperature S (max)/E (max) of 621 pm/V under a very low driving field of 35 kV/cm and an achievable large S (max)/E (max) of 531 pm/V with almost vanished hysteretic behavior at high temperature. Our work may be helpful for designing BNT-based lead-free materials with promising strain response and thus provides a new approach to resolve this drawback of BNT-based lead-free piezoelectric ceramics.