High-voltage-resistant magnetic switch

The utility model discloses a high-voltage-resistant magnetic switch, which comprises a detection unit, a control unit and an execution unit, the detection unit comprises a magneto-sensitive element,a static magnetic field shielding case and a magnet; the magnet is installed in the static magnetic field shielding case, a detected object is located in the magnetic field of the detection position,and the magneto-sensitive element is used for detecting the intensity of the magnetic field. The control unit comprises an A/D module, a gain control module, a signal processing module, an output driving module and an output module; the gain control module is used for receiving and amplifying a magnetic field signal detected by the magneto-sensitive element; the output end of the gain control module is connected with the input end of the A/D module, the A/D module is used for sampling the amplified magnetic field signal and sending the magnetic field signal to the signal processing module, andthe signal processing modu