Construction　of　multi-channels　of　photo-carrier　migration　in　photocatalysts　is　favor　to　boost　con-version　efficiency　of　solar　energy　by　promoting　the　charge　separation　and　transfer.　Herein,　a　ter-nary　ZnIn2S4/g-C3N4/Ti3C2　MXene　hybrid　composed　of　S-scheme　junction　integrated　Schott-ky-junction　was　fabricated　using　a　simple　hydrothermal　approach.　All　the　components　(g-C3N4,　ZnIn2S4　and　Ti3C2　MXene)　demonstrated　two-dimensional　(2D)　nanosheets　structure,　leading　to　the　formation　of　a　2D/2D/2D　sandwich-like　structure　with　intimate　large　interface　for　carrier　migra-tion.　Furthermore,　the　photogenerated　carriers　on　the　g-C3N4　possessed　dual　transfer　channels,　including　one　route　in　S-scheme　transfer　mode　between　the　g-C3N4　and　ZnIn2S4　and　the　other　route　in　Schottky-junction　between　g-C3N4　and　Ti3C2　MXene.　Consequently,　a　highly　efficient　carrier　sepa-ration　and　transport　was　realized　in　the　ZnIn2S4/g-C3N4/Ti3C2　MXene　heterojunction.　This　ternary　sample　exhibited　wide　light　response　from　200　to　1400　nm　and　excellent　photocatalytic　H2　evolu-tion　of　2452.1　mu　mol　center　dot　g-1　center　dot　h-1,　which　was　200,　3,　1.5　and　1.6　times　of　g-C3N4,　ZnIn2S4,　ZnIn2S4/Ti3C2　MXene　and　g-C3N4/ZnIn2S4　binary　composites.　This　work　offers　a　paradigm　for　the　rational　con-struction　of　multi-electron　pathways　to　regulate　the　charge　separation　and　migration　via　the　intro-duction　of　dual-junctions　in　catalytic　system.(c)　2022,　Dalian　Institute　of　Chemical　Physics,　Chinese　Academy　of　Sciences.　Published　by　Elsevier　B.V.　All　rights　reserved.