Using　dynamic　finite　difference　software-FLAC,　combining　with　strength　reduction　dynamic　analysis　method,　a　new　method　for　anti-sliding　pile　aseismic　design　is　proposed.　Taking　the　security　and　stability　factor　of　the　landslide　as　a　discount　factor　of　rock　mass　parameters,　then　the　rock　mass　parameters　is　discounted.　Using　FLAC　dynamic　analysis,　soil-pile　dynamic　interaction　is　considered;　the　peak　internal　forces　of　piles　engendered　during　the　earthquake　is　divided　by　the　coefficient　of　concrete　strength　increasing　under　earthquake,　which　compared　with　the　internal　forces　of　piles　after　the　earthquake,　the　larger　is　considered　to　be　the　value　of　internal　forces　for　aseismic　design.　While　after　the　piles　have　been　supported,　the　dynamic　safety　factor　of　the　landslide　should　greater　than　the　acceptable　value　to　ensure　the　landslide　would　not　damage　over　topping.　An　example　of　landslide　with　pile　supported　is　given.　The　results　show　that　the　strength　reduction　dynamic　analysis　method　is　able　to　consider　soil-pile　dynamic　interaction,　and　get　the　real　distributed　form　of　thrust　force,　so　as　to　provide　a　new　idea　for　aseismic　design　of　anti-slide　piles.