The　electroreduction　of　water　for　sustainable　hydrogen　production　is　an　important　process　for　clean　energy　technologies,　such　as　water　splitting　and　fuel　cells.　However,　development　of　low-cost　and　efficient　electrocatalysts　for　hydrogen　evolution　reaction　(HER)　is　still　a　great　challenge.　Here　we　reported　a　kind　of　ultrathin　chain-structured　CuCo2O4　(CCO)　and　sulfured　CuCo2O4　(S-CCO)　for　HER　with　excellent　activity　and　good　durability　in　alkaline　solution.　At　a　current　density　of　10　mA　cm(-2),　S-CCO　nanocomposite　catalyst　only　need　an　overpotential　of　154　mV　(vs.　RHE),　whereas　chain-structured　CCO　need　an　overpotential　of　490　mV.　It　demonstrates　that　sulfured　treatment　is　an　effective　approach　to　enhance　the　catalytic　activity　of　oxide　for　HER.