Model　tests　accompanying　numerical　analyses　on　the　modified　suction　caissons　(MSCs)　in　saturated　marine　sand　subjected　to　inclined　loading　were　conducted　to　investigate　the　bearing　behavior　and　earth　pressure　distribution　along　the　embedded　depth.　Influences　of　external　structure　sizes,　inclined　loading　angles　and　loading　point　position　on　the　inclined　bearing　behavior　were　discussed.　Results　show　that　the　inclined　bearing　capacity　significantly　decreases　with　increasing　the　loading　angle　when　the　loading　point　locates　at　the　outer　wall　of　the　internal　compartment.　It　can　be　also　found　that　the　passive　earth　pressure　can　resist　a　considerable　portion　of　the　inclined　load　when　the　loading　point　is　located　at　the　internal　compartment　wall.　The　maximum　inclined　bearing　capacity　of　MSC　is　obtained　when　the　loading　position　locates　at　the　internal　compartment　outer　wall　of　2　L　1/3-3L　1/4　below　the　caisson　lid　under　relatively　small　loading　angle.　An　equation　was　proposed　to　determine　the　optimum　loading　point　position　under　different　loading　angles　to　obtain　the　maximum　inclined　bearing　capacity.　©　2020　Informa　UK　Limited,　trading　as　Taylor　&　Francis　Group.