Abstract: This paper reviewed the preparation method and application progress of crosslinked polyethylene foaming materials. These preparation methods mainly included compression molding method, extrusion method, foaming box method, rotation molding method and radiation method. Furthermore, the advantages and disadvantages in preparation process, cost and promotion of these preparation methods were analyzed. The application progress of crosslinked polyethylene foaming materials in filling materials, heat insulation materials, building materials and lightweight materials are also summarized. Finally, the development prospect of crosslinked polyethylene foaming materials was discussed.