Abstract: In order to carry out mechanical analysis of continuous beams,the transfer matrix method improved from the matrix displacement method was presented.Finite element method was employed to discretize the continuous beams so as to obtain the displacement vector,force vector and cell rigidity matrix.Transfer matrix method was employed to determine the transfer relation of the poles in the beam.The displacements and inner forces at crunodes can be solved based on given boundary conditions.A practical calculation project of the continouous beams was demonstrated which can verify the validity of the presented method.This method can simplify the calculation greatly and is more suitable for the inner force calculation of continuous beams by using computer.