Given　its　superior　structure,　the　abundance　of　surface　functional　groups,　and　low　cost,　cotton　fiber　filtration　paper　can　be　used　as　the　support　for　hydrogen　evolution　reaction　(HER)　and　oxygen　evolution　reaction　catalysts　(OER)　instead　of　copper　foam　(CF),　nickel　foam　(NF),　or　carbon　cloth　(CC).　Herein,　the　chemical　plating　method　was　used　to　create　thin　self-supporting　electrodes　based　on　cotton　fiber　filtration　paper　(FP).　The　Co-Ni-P　amorphous　nanospheres　can　be　uniformly　dispersed　on　the　self-supporting　FP　due　to　its　porous　structure　and　oxygen　functional　groups.　The　Co-Ni-P/FP　electrode　has　an　overpotential　as　low　as　125　mV　for　HER　and　320　mV　for　OER　at　the　current　density　of　10　mA　cm-2.　Additionally,　according　to　density　functional　theory　(DFT)　cal-culations,　the　Co　atom　added　to　the　Ni-P　nanosphere　can　lead　to　considerably　more　charge　accumulation　around　the　Co　and　Ni　active　sites,　which　greatly　encourages　the　HER　and　OER　processes.　The　novel　porous　support,　FP,　provides　a　fresh　way　the　preparation　of　self-supporting　electrodes.