Cu2O　is　one　of　the　most　promising　photocatalysts　for　visible　light　driven　CO2　conversion,　but　its　practical　application　in　artificial　photosynthesis　is　challenged　to　severe　photocorrosion.　Herein,　a　Cu2O/LaTiO2N　composite　is　successfully　synthesized　by　loading　Cu2O　on　LaTiO2N　through　an　ascorbic　acid　reduction　method,　which　significantly　improves　the　stability　and　activity　of　Cu2O　for　visible　light　driven　photocatalytic　CO2　conversion,　and　shows　higher　photocatalytic　performance　than　most　Cu2O-based　photocatalysts　reported.　The　superior　photocatalytic　performance　is　attributed　to　the　formation　of　type-II　heterojunction　between　Cu2O　and　LaTiO2N,　which　facilitates　the　separation　and　transfer　of　photogenerated　electrons　and　holes.　This　work　provides　an　effective　strategy　for　the　construction　of　stable　and　efficient　Cu2O-based　photocatalysts.　©　2022　Elsevier　Inc.