基于工程需要，将三维边界元法用于解摩擦型弹性接触问题。在考虑摩擦作用的情况下，于接触区建立局部坐标系，引入边界接触条件，并使用等参单元离散边界，使单元形状与物体边界更好地贴合，最后针对接触问题的非线性特性，讨论了它的增量迭代求解过程。算例表明，在此提出的数值方法是精确有效的。 Based on the engineering requirements, the three-dimensional boundary element method is used to solve the friction-type elastic contact problem. Considering the friction effect, a local coordinate system is established in the contact area, the boundary conditions are introduced, and the isoparametric unit is used to discretize the boundary so that the shape of the unit is better fitted to the object boundary. Finally, according to the nonlinear characteristics of the contact problem, It discusses its incremental iterative solution process. The example shows that the proposed numerical method is accurate and effective.