ABAQUS finite element software is used to simulate the vertical bearing condition and construction process of rock-socketed pile (quadrangular pile) on the slope.The nonlinear effects of material and pile-rock contact are taken into account when three-dimensional models of the slope rock-socketed group piles system are established.Based on the change for parameters of slope angle,socketed depth etc.,the vertical bearing capacity of slope rock-socketed group piles is analyzed.Research results show that under different conditions of slope angle and socketed depth,vertical bearing capacity of slope rock-socketed group piles is the comprehensive reflection of radial expansion of group piles,loss effect of rock mass before pile,enhancement effect of rock mass behind pile,and platform stiffness etc.The pile group effect coefficient of group pile increases gradually with the increase of slope angle (0°≤R≤45°).When the slope angle is larger (30°≤R≤45°),the uneven settlement of platform and each pile top of rock-socketed group piles (quadrilateral four piles) is more obvious.