Using　solar　energy　to　catalyse　photo-driven　processes　to　address　the　energy　crisis　and　environmental　pollution　plays　a　role　in　the　path　to　a　sustainable　society.　Many　oxide-based　materials,　especially　perovskite　oxides,　have　been　widely　investigated　as　catalysts　for　photocatalysis　in　energy　and　environment　because　of　the　low-cost　and　earth-abundant　and　good　performance.　At　this　stage,　there　is　a　need　to　present　a　scientific-based　evaluation　of　the　technologies　developed　so　far　and　identify　the　most　sustainable　technologies　and　the　existing　limitations　and　opportunities　for　their　commercialisation.　This　work　comprehensively　investigated　the　outcomes　using　various　scientometric　indices　on　perovskite　oxide-based　photo(electro)catalysts　for　water　splitting,　nitrogen　fixation,　carbon　dioxide　conversion,　organic　pollutant　degradation,　current　trends　and　advances　in　the　field.　According　to　the　results　achieved,　efforts　in　both　energy　and　environment　based　on　perovskite　oxides　have　been　initiated　in　the　1990s　and　accelerated　since　the　2010s.　China　and　the　United　States　were　identified　as　the　most　contributing　countries.　Based　on　the　results　achieved　in　this　study,　the　main　milestones　and　current　trends　in　the　development　of　this　field　have　been　identified.　The　aim　of　this　research　is　to　provide　useful　guidelines　for　the　further　investigation　of　perovskite　oxide-based　catalysts　for　photoelectrocatalysis　and　photocatalysis　both　in　energy　and　environment　on　the　applications　such　as　water　splitting,　nitrogen　fixation,　carbon　dioxide　conversion,　and　wastewater　treatment.