The invention discloses an electromagnet air switch. The electromagnet air switch comprises a base. A noise reduction silencing structure is arranged in an inner cavity of the base. The noise reduction silencing structure is fixedly connected to the lower end of the inner cavity of the base in a sleeving manner. A closed spring is arranged at the upper end of the noise reduction silencing structure. The bottom end of the closed spring is fixedly sleeved with a center through hole in the upper end of the noise reduction silencing structure. An iron core and a magnetizing extending-and-contracting structure are arranged at the upper end of the closed spring. According to the electromagnet air switch, a sealing piece made of a rubber material is clamped to the top end of the iron core of theelectromagnet air switch, normally-closed sealing is achieved under the effect of the closed spring, an electromagnet is electrified, the magnesium is generated, the iron core contracts towards the bottom, ventilation is released, collision and noise are generated when the iron core contracts towards the bottom, then the noise is lowered through the noise reduction silencing structure, and air pressure distribution is flexible and reliable by means of an air distribution unit.