This study reported a novel and unprecedented photoredox-catalyzed protocol for direct allylic C-H fluorosulfonylation of alkenes with FABI. This mild protocol exhibited excellent compatibility with various functional groups, broad substrate scope, and promising scalability, enabling convenient access to a wide range of allyl sulfonyl fluorides with exceptional regioselectivity. The synthetic robustness of this strategy was further demonstrated by the late-stage functionalization of natural products and their ligation with other drugs via SuFEx chemistry.