Although　transition-metal-based　phosphides　as　cost-effective　catalysts　have　great　potential　for　transforming　water　to　hydrogen,　their　electrocatalytic　property　for　industrial　application　is　still　limited.　Herein,　we　focus　on　developing　amorphous　NiCoP　with　dandelion-like　arrays　anchored　on　nanowires　through　a　universal　strategy　of　hydrothermal　and　phosphorization.　The　hierarchical　structure　features　in　larger　catalytic　surface　areas　expedited　reaction　kinetics　and　improved　structural　stability.　Benefiting　from　these　merits,　the　NiCoP　reaches　10　mA　cm(-2)　at　an　overpotential　of　mere　57　mV　for　a　hydrogen　evolution　reaction　in　standard　solution.　Also,　a　profound　activity　for　the　generation　of　oxygen　is　along　with　it,　which　requires　276　mV　to　attain　10　mA　cm(-2).　Moreover,　it　demonstrates　satisfying　durability　for　both　processes.