Abstract: An associated method of the finite element method(FEM)and boundary element method(BEM)for analysing the interaction of structure foundation and soil is presended. BEM is used for the soil and FEM is used for structure and foundation. It is solved by the combi nation with the compatibility of displacements and the equilibrium of forces in the interface between the two parts, A program is given on the IBM—PC, and the results computed are agreeable with the results of FEM and other methods. Because of the supperiority of BEM, this method has the advantanges of good accuracy, high speed of calculation, and less computer storage requirements.