Photocatalytic　reduction　of　CO2　to　solar　fuels　and/or　fine　chemicals　is　a　promising　way　to　increase　the　energy　supply　and　reduce　greenhouse　gas　emissions.　However,　the　conventional　reaction　system　for　CO2　photoreduction　with　pure　H2O　or　sacrificial　agents　usually　suffers　from　low　catalytic　efficiency,　poor　stability,　or　cost-ineffective　atom　economy.　A　recent　surge　of　developments,　in　which　photocatalytic　CO2　valorization　is　integrated　with　selective　organic　synthesis　into　one　reaction　system,　indicates　an　efficient　modus　operandi　that　enables　sufficient　utilization　of　photogenerated　electrons　and　holes　to　achieve　the　goals　for　sustainable　economic　and　social　development.　In　this　Review　we　discuss　current　advances　in　cooperative　photoredox　reaction　systems　that　integrate　CO2　valorization　with　organics　upgrading　based　on　heterogeneous　photocatalysis.　The　applications　and　virtues　of　this　strategy　and　the　underlying　reaction　mechanisms　are　discussed.　The　ongoing　challenges　and　prospects　in　this　area　are　critically　discussed.　©　2021　Wiley-VCH　GmbH