Elastic foundation beam is a widely used foundation form in rail foundations,characterized by high beam stiffness,small deformation,and good overall integrity.This structural form can effectively disperse and transmit the load of the upper structure,providing stable and reliable support.The design focus of elastic foundation beams is on the calculation and analysis of the foundation's stress in order to reasonably control the bending moment and foundation stress of the beam body.The finite element calculation method is used to compare and analyze calculation results of different beam segment lengths and whether they are hinged between beam segments through practical engineering application design.The design concept of selecting reasonable beam segment lengths and setting reasonable connection methods between beam segments is proposed,which can be used as a reference for similar projects.