The invention relates to an air switch fixing device. The air switch fixing device comprises a buckle and an operating handle, wherein the operating handle is fixed on the buckle, the cross section of the operating handle is in an inverted U shape, the inverted U-shaped operating handle is formed by transmission connection of a left side part and a right side part through a rotation shaft, the buckle comprises a plug-in part and an installation part, the plug-in part is matched with a locking hole of an air switch, and the installation part is connected with the plug-in part and is used for installing the operating handle. The air switch fixing device is simple in structure and is convenient to operate, a hand is not liable to hurt during the operation process, and meanwhile, the risk of breaking and closing by mistake during the operation process can be substantially reduced. The fixing device is provided with a sign board, the sign board is detachably connected with the buckle, and the operation of hanging the sign board can be omitted.