Exploration　of　efficient　and　stable　transition　metal-based　co-catalyst　is　of　great　importance　for　large-scale　hydrogen　production　in　the　mean　of　photocatalytic　water　splitting.　Herein,　we　propose　an　effective　CdS/MoC　photocatalyst　for　enhanced　photocatalytic　H-2　evolution　under　visible　light　irradiation　(＞=　420　nm).　Upon　coupling　to　CdS　through　a　facile　solution-mixing　method,　MoC　was　functionalized　as　an　effective　co-catalyst　that　accepts　interface　electron　from　CdS　while　promoting　charges　separation.　Furthermore,　DFT　also　confirmed　a　facilitated　H*　adsorption　on　CdS/MoC　through　its　lowered　Gibbs　free　energy　(Delta　G(H)*)　of　0.37　eV,　which　is　beneficial　for　H-2　production　too.　As　a　result,　the　optimum　photocatalyst,　with　5　wt%　MoC　coupled　to　CdS,　induces　the　best　hydrogen　production　rate　of　224.5　mu　mol　h(-1),　which　is　7.5　times　higher　than　that　of　pristine　CdS.　Meanwhile,　an　apparent　quantum　efficiency　(AQE)　of　7.6%　was　also　recorded　at　420　nm.　In　terms　of　H-2　generation,　the　synthesized　CdS/MoC　(5　wt%)　is　more　superior　to　CdS/Pt　(5　wt%)　in　an　extent　of　44.5%.　This　work　confirms　the　competency　of　MoC　as　an　effective　cocatalyst　and　promising　alternative　to　benchmarked　Pt　for　photocatalytic　hydrogen　production　from　water.