This presentation provides an overview of the alkaline water electrolysis for hydrogen production and discusses examples of previous and current research activities in KIER, and future opportunities for improvements of this technology. The challenges in material developments including electrodes and a separator to improve the cell performance and durability of alkaline electrolysis as advance designs will be introduced. The compact Unitized Bipolar Electrodes design was applied to evaluate the in situ single cell performance of AWE cells. Porous Ni-Zn-(Fe) electrodes as HER electrodes that were prepared by the electrodeposition method followed by the selective chemical etching of Zn in KOH. For the OER electrodes, Ni_x-Fe_1-x Layered Double Hydroxide(LDH, x=0.5~0.7), which have shown the 100-fold OER activity enhancement over Ni in ex-situ studies was directly grown on metal lath and foams. Electro-activity of the AWE cell with Ni_x-Fe_1-x LDH ＆ Ni-Zn-P electrodes toward HER/ OER has exhibited high-performance at 200 ＆ 600 mA/cm², as a voltage efficiency of 97 ＆ 80% respectively, which is comparable to that of the well-developed commercial alkaline water electrolyzer.