Based on 3-D joint-element, the theory and methodology are discussed about inversion of geodetic data.The important FEM and inversion formula are given in detail;also a related code is developed.

• 以三维节理单元为基础，讨论了利用三维双节点节理单元模型反演地形变资料的理论基础及方法的应用，推导了具体应用的有限元公式及反演的数学公式，并编制了相应的计算程序。