AC/DC current leakage protection switch based on fluxgate sensor

The invention relates to an AC/DC current leakage protection switch based on a fluxgate sensor. The AC/DC current leakage protection switch comprises a protection switch shell, an input end, an outputend, an electromagnetic detection device and an actuating mechanism, the protection switch shell is composed of a switch cover and a base, the base is of a box structure, grooves are formed in the two sides of the base respectively, and the switch cover is inserted into the top of the base. The input end and the output end are respectively arranged in the groove in the two sides of the base and can be connected with a live wire and a zero wire of a low-voltage distribution line. One end of the electromagnetic detection device is connected with the input end through an access end wire, the other end of the electromagnetic detection device is connected with the output end through an output end wire, the access end wire is connected with the output end wire through an action mechanism contact, and the electromagneti