The invention provides an extension tube and an electric vacuum cleaner with the same. The extension tube comprises a substantially cylindrical fiber reinforced resin laminated sheet (18) formed by polyolefin resin, and a substantially cylindrical resin supporting component (19) which is welded to the fiber reinforced resin laminated sheet (18) in a way of integrated forming method including the imbedding forming and formed by resin which is highly compatible to the fiber reinforced resin laminated sheet (18). The resin supporting component (19) comprises a connection part (44) on at least oneend part. Thus, by use of the fiber reinforced resin laminated sheet (18) and the resin supporting component (19), a cylinder part with a venting path is formed. In this way, physical intensity relative to the bending can be improved, and light weight can be achieved. Therefore, an extension tube (3) which is light, quite highly safe and simple in structure and can be integrated to the connectionparts (44) through the cylinder parts can be provided.