Based　on　Biot＇s　dynamic　wave　theory　and　Novak＇s　plane　strain　model　(PSM),　an　analytical　model　for　the　horizontal　vibration　of　a　partially　embedded　pipe　pile　group　(PEPPG)　in　layered　saturated　soil　(LSS)　that　considers　the　soil-plugging　effect　was　established:　First,　the　frequency-domain　analytical　expressions　of　the　saturated　surrounding　soil　(SSS)　and　soil　plug　were　obtained　by　introducing　operator　decomposition　theory　and　the　variable　separation　method.　Second,　the　analytical　solution　of　the　horizontal　impedance　of　a　partially　embedded　pipe　pile　in　the　LSS　is　derived　using　the　coupled　condition　of　the　pile-soil　interface　and　transfer　matrix　method.　Finally,　an　analytical　solution　for　the　horizontal　impedance　of　PEPPG　in　LSS　was　derived　by　introducing　the　horizontal　dynamic　interaction　factor　of　piles　and　the　superposition　method.　The　derived　solution　is　then　reduced　and　compared　with　existing　theoretical　solutions　to　verify　its　rationality.　In　addition,　further　parametric　analysis　was　conducted　to　investigate　the　influences　of　pile　spacing,　embedment　ratio,　properties　of　layered　SSS,　and　soil-plugging　on　the　horizontal　vibration　characteristics　(HVCs)　of　PEPPG.