The　p-y　curve　method　provides　a　relatively　simple　and　efficient　means　for　analyzing　the　cyclic　response　of　horizontally　loaded　piles.　This　study　proposes　a　p-y　spring　element　based　on　a　bounding　surface　p-y　model,　which　can　be　readily　implemented　in　Abaqus　software　using　the　user-defined　element　(UEL)　interface.　The　performance　of　these　p-y　spring　elements　is　validated　by　simulating　field　tests　of　laterally　loaded　piles　documented　in　the　literature.　The　developed　spring　element　effectively　replicates　the　nonlinear　hysteresis,　displacement　accumulation,　and　stiffness　degradation　observed　in　soft　clay.　Subsequently,　a　finite　element　model　of　a　large-diameter　monopile　is　established　using　the　proposed　spring　element.　A　comprehensive　numerical　investigation　is　conducted　to　explore　both　the　monotonic　and　cyclic　responses　of　large-diameter　monopiles　in　soft　clays.　The　results　are　presented　and　discussed　in　terms　of　pile　head　load-displacement　curves,　the　evolution　of　rotation　angles　at　the　mud　surface,　and　cyclic　p-y　curves.　Additionally,　empirical　formulas　are　proposed　to　predict　the　evolution　of　cumulative　rotation　angles　and　peak　bending　moments　under　both　one-way　and　two-way　cyclic　loading　conditions.　The　results　provide　valuable　insights　into　the　mechanism　of　pile-soil　interaction　under　lateral　cyclic　loading.