The　construction　of　heterojunctions　is　beneficial　to　improve　the　separation　efficiency　of　photogenerated　electron-hole　pairs,　so　as　to　enhance　the　activity　of　photocatalysts.　Herein,　NiS　thin　layer　covered　CdS　nanorods　(NiS/CdS)　were　synthesized　by　a　two-step　hydrothermal　approach.　Under　the　irradiation　of　visible　light,　the　optimal　NiS/CdS　covered　heterojunctions　showed　high　photocatalytic　stability　and　excellent　hydrogen　evolution　rate　up　to　401.7　mmol　g(-1)　h(-1),　which　is　higher　than　that　of　most　CdS-based　photocatalysts.　The　apparent　quantum　efficiency　of　NiS/CdS　at　420　nm　was　1.5%.　The　formation　of　NiS/CdS　heterojunctions　with　large　intimate　contact　area　leads　to　strong　interfacial　coupling　between　NiS　thin　layers　and　CdS　nanorods.　This　promotes　the　separation　and　migration　of　photoinduced　electron-hole　pairs　and　provides　more　active　sites　for　redox　reactions,　thus　improving　the　activity　of　photocatalysts.　This　work　presents　new　ideas　for　the　design　of　high-performance　photocatalysts　for　H-2　production.