In low pile platform structure calculation,the pile-soil interaction is usually only considered without the base slab-soil interaction.Based on engineering practice,we establish the simplified finite element model for low-pile-platform structure to analyze the influence of internal force of base slab and pile when the bearing capacity of soil between piles is considered.The results show that the moment of base slab and axial force of pile can be reduced by 35%~40% if load-bearing capacity of soil between piles is considered in the simplified model,while the bending moment and shear force of pile foundation are determined by horizontal force and soil m value.The axial force of pile decreases with the increase of soil bedding coefficient,but the damping gradually decreases.