In　order　to　satisfy　the　requirements　of　design　and　calculation　of　piles　subjected　to　laterally　parabolic　distributed　loads,　the　finite　difference　method　and　the　pole　system　finite　element　method　of　elastic　foundation　are　presented　and　discussed　in　order　to　compute　the　displacements　and　internal　forces　by　adopting　biparameter　method　of　lateral　subgrade　reaction.　The　finite　difference　computing　and　figure　processing　of　displacements　and　internal　forces　of　piles　are　programmed.　The　example　shows　that　the　calculation　results　obtained　by　the　two　numerical　methods　well　coincide　each　other.　After　the　two　parameters　of　lateral　subgrade　reaction　obtained　by　trial　computations　based　on　the　measurements　of　the　testing　piles,　the　design　and　calculation　of　the　piles　subjected　to　laterally　parabolic　distributed　loads　can　be　conducted　effectively　and　reliably　with　the　two　methods.　The　achieved　results　can　provide　some　references　for　similar　engineering　design.