The invention discloses a material pumping apparatus for transferring a polyurethane raw material. The material pumping apparatus comprises: a material pumping pipe; a soft pipe, wherein the soft pipe encloses one part of the length of the material pumping pipe; a sealing cover positioned on the first end of the soft pipe and provided for forming an airproof sealed connection of the first end of the soft pipe and the material pumping pipe, wherein the sealing cover is provided with an opening; a magnet, wherein the magnet is attached and connected to the second end of the soft pipe; an elastic magnetic sealing pad, wherein the elastic magnetic sealing pad can be arranged between the magnet and the upper surface of a material barrel for holding a polyurethane raw material; and an inert gas conveying pipe, wherein the inert gas conveying pipe penetrates through the opening on the sealing cover and is connected to the internal of the soft pipe. According to the material pumping apparatus for transferring the polyurethane raw material, the water entering the material barrel during the transferring process of isocyanate or polyol and other polyurethane raw materials is reduced, the side reaction of the polyurethane raw material and water is avoided, and the product quality is improved. The present invention further discloses an assembly for transferring the polyurethane raw material.