Algae-derived　organic　matter　(AOM)　limits　the　effectiveness　of　conventional　water　treatment　processes,　affects　the　normal　operation　of　water　treatment　plants,　and　causes　water　quality　deterioration.　Efficient　elimination　of　AOM　is　an　urgent　issue　in　the　advanced　treatment　of　drinking　water.　In　this　study,　A　heterogeneous　interface　for　AOM　removal　was　established　based　on　BT/C,　which　can　be　driven　by　visible　light.　The　removal　efficiencies　of　extracellular　organic　matter　(EOM),　intracellular　organic　matter　(IOM),　and　AOM　by　BT/C　reached　the　optimal　levels　at　30　min,　60　min,　and　90　min,　respectively,　reaching　48.5　%,　81.8　%,　and　74.0　%.　BT/C　can　oxidize　and　break　down　a　large　amount　of　high-molecular-weight　organic　matter　in　EOM　into　medium-　and　low-molecularweight　organic　substances,　and　effectively　remove　the　low-molecular-weight　organic　matter　in　EOM.　In　addition,　BT/C　can　efficiently　remove　humic　acids(HS)　and　aromatic　protein　organic　matter　in　IOM,　directly　mineralize　or　decompose　high-molecular-weight　biopolymers　into　small-molecular-weight　acidic　and　neutral　organic　matter;　electron　paramagnetic　resonance　spectroscopy　and　reactive　oxygen　species　trapping　experiments　verified　that　hydroxyl　radical　(center　dot　OH)　have　play　most　important　role　on　the　degradation　of　various　molecular　weight　organic　matters.　Superoxide　radical　(center　dot　O2-)　plays　a　dominant　role　in　the　oxidation　process　of　soluble　microbial　metabolites　and　HS,　and　center　dot　OH　plays　a　significant　role　in　the　oxidation　process　of　amino　acid-like　proteins.　This　study　provides　new　ideas　and　technical　support　for　the　complete　removal　of　algae-derived　organic　matter　and　the　protection　of　drinking　water　safety.