As　a　new　type　of　slope　retaining　structure,　pile-sheet　retaining　wall　is　widely　used　in　the　cutting　slope,　embankment　engineering　and　landslide　treatment,　however,　the　study　of　earth　pressure　on　retaining　wall　slab　still　lags　behind.　In　order　to　reasonably　determine　the　earth　pressure　acting　on　the　retaining　wall　slab,　this　paper　establishes　a　soil　arching　calculation　model　based　on　the　assumption　of　the　reasonable　arch　axis　of　the　pile-sheet　retaining　wall　behind　the　pile　arch,　and　the　landslide　thrust　of　the　arch　rear　slope　was　assumed　to　be　uniformly　distributed.　Then,　based　on　the　static　balance　conditions　of　the　soil　arches　and　the　soil　arching　is　in　the　limit　equilibrium,　the　vertical　stress　of　soil　arching　is　determined　based　on　the　Mohr-Coulomb　strength　criterion,　the　calculation　formula　of　earth　pressure　acting　on　retaining　wall　slab　of　pile-sheet　retaining　wall　considering　landslide　thrust　is　deduced.　Compared　with　the　traditional　method　(unloading-arch　theory　and　simplified　granary　method),　the　results　show　that　this　method　can　better　reflect　the　actual　earth　pressure　acting　on　the　pile-retaining　wall,　and　can　consider　the　role　of　landslide　thrust.　Meanwhile,　the　traditional　methods　are　just　a　special　form　of　this　method.　The　earth　pressure　on　the　retaining　wall　decreases　linearly　with　the　increases　of　the　cohesion　and　internal　friction　angle　of　the　soil,　and　in-creases　with　the　thrust　of　the　rear　landslide　and　1/B　of　the　pile-sheet　retaining　wall.　The　research　results　can　provide　reference　for　the　reasonable　design　of　pile-sheet　retaining　wall.　©　2018　Science　Press.