The invention discloses a macromolecular elastomer expansion joint, which comprises a fixed area, an expansion deformation area, bolt holes, deformation holes and bolts, wherein the macromolecular elastomer expansion joint is arranged on a concrete pavement through the bolts, and is flush with a pavement layer; the bolt holes are formed in the fixed area; the deformation holes are formed in the expansion deformation area. The macromolecular elastomer expansion joint has the advantages of lightweight, strong strength, corrosion resistance, free expansion, smoothness and no jump or noise during the running of a vehicle, easiness in mounting and the like, and is applied between two beam ends and between the beam ends and bridge abutments or to the hinging positions of bridges, and the deformation requirements of expansion, torsion, bending and the like of the bridges can be met.