Turning　the　carrier　dynamics　in　heterojunction　photocatalysts　is　a　direct　and　effective　strategy　for　improving　the　solar　energy　conversion　efficiency　of　photocatalysts.　Herein,　we　report　a　ternary　CdS@MoS2-Co3O4　multiheterojunction　photocatalyst　consisting　of　the　p-n　junction　of　MoS2-Co3O4　and　the　type-I　junction　of　CdS@MoS2,　wherein　MoS2　located　at　the　frontier　between　CdS　and　Co3O4　acts　as　an　intermediate　bridge.　The　type-I　junction　allows　the　directional　transfer　of　photoinduced　charge　from　CdS　to　MoS2,　suppressing　the　photocorrosion　of　CdS.　Notably,　the　single-particle　photoluminescence　technique　demonstrates　the　sequential　one-direction　hole　transfer　from　MoS2　to　Co3O4　aroused　by　the　p-n　junction,　resulting　in　a　long-lifetime　charge　separation　in　the　carrier　lifetime　(54-58　ns).　Compared　to　the　bare　CdS　and　type-I　CdS@MoS2,　the　CdS@MoS2-Co3O4　photocatalyst　affords　a　347-fold　and　3.5-fold　enhancement　of　the　H2　evolution　rate,　a　quantum　efficiency　of　28.6%　at　450　nm,　and　a　20　h　of　long-term　stability.　This　work　provides　a　new　understanding　of　the　rational　regulation　of　the　charge-transfer　mechanism　of　type-I　systems　by　constructing　multiheterojunction　photocatalysts.　©　2023　American　Chemical　Society