Abstract: A canceling structure of a combination switch is disclosed, which ensures the returning moment of a cancel cam without increasing the size of a spring. A cancel cam 20 placed on a swing block that can be rotated with a control lever includes pressure contact surfaces 22 on a plane passing through the shaft center of an upper shaft 9b, and the upper shaft 9b is guided along a long hole 9b of a cover. An elastic contact material 30 has pressure surfaces 32 to be brought into contact with the pressure contact surfaces of the cancel cam, and is biased toward the cancel cam along a guide 6d by a coil spring 11 inserted into a blind hole 12b. The pressure surfaces 32 have a shaft-escaping recessed portion 34 forming a predetermined gap between them and the upper shaft 9b when brought into contact with the pressure contact surfaces of the cancel cam.