Continuous line combined polyether is a polyether polyol combination system specially designed for continuous production line process. It mainly contains polyether polyols, catalysts, foaming agents, crosslinkers and other components. Polyether polyols are the main components, and their molecular structure and molecular weight will be selected according to the specific application needs. For example, highly functional polyether polyols can give the final product better mechanical properties. Catalysts are used to regulate the speed of foaming and gelling reactions, ensuring that the reaction can proceed at a predetermined rate during continuous production. Blowing agents can be physical blowing agents (such as carbon dioxide, etc.) or chemical blowing agents, which produce gases during the reaction process to make the product foam. The presence of crosslinkers can enhance the three-dimensional network structure of the foam and improve the strength and stability of the product.