ABO_3-based photocatalysts for water splitting were systematically reviewed in this manuscript. Crystal structure and chemical composition characteristics of ABO_3 materials were briefly introduced to guide the modification of ABOrbased photocatalysts.The ABO_3-based photocatalysts were then reviewed in detail and divided into four groups based on the employed modification strategies,i.e.,chemical component adjustment,micro-/nano-structure adjustment,local lattice structure adjustment,and application of the modification strategy of ABO_3 photocatalysts in designing A_xB_y0_z photocatalysts.In this section,the recent research works on ABOrbased photocatalysts in our group were presented.Finally, application of ABO_3 photocatalysts in Z-scheme systems for overall water splitting was introduced.This review summarized the development of ABOrbased photoaitalysts and showed the values and possible direction of future research,thereby ottering a guide for photocatalytic water splitting. ABO_3-based photocatalysts for water splitting were systematically reviewed in this manuscript. Crystal structure and chemical composition characteristics of ABO_3 materials were briefly introduced to guide the modification of ABObased photocatalysts. ABO 3-based photocatalysts were then reviewed in detail and divided into four groups based on the employed modification strategies, ie, chemical component adjustment, micro- / nano-structure adjustment, local lattice structure adjustment, and application of the modification strategy of ABO_3 photocatalysts in designing A_xB_y0_z photocatalysts. In this section, the recent research works on ABO-based photocatalysts in our group were presented. Finally, application of ABO_3 photocatalysts in Z-scheme systems for overall water splitting was introduced. This review summarizes the development of ABOrbased photoaitalysts and showed the values ​​and possible direction of future research, whereby ottering a guide for photocatalytic water splitting.