The invention relates to a switching device and a method and equipment for preventing contact adhesion in the switching device. The switching device comprises a switching body, a moving contact and astatic contact cooperating with the moving contact. The moving contact and the static contact are arranged on the switching body. The moving contact is provided with a first magnet. The static contactis provided with a second magnet. The switching body is connected with a safety monitor. If the moving contact contacts with the static contact, the switching device enters into the conduction state.The safety monitor acquires the current flowing through the switching body, if it is judged that the current of the switching body is greater than the preset current threshold, the polarity of the first magnet or the polarity of the second magnet is changed so that the polarity of the first magnet is the same as the polarity of the second magnet, and a repelling force is generated between the first magnet and the second magnet, the moving contact and the static contact are separated under the repelling force, and thus the moving contact and the static contact can be prevented from being adhered, the influence on the normal operation of the electric equipment and even damage to the electric equipment can be avoided and the safety of the electric equipment can be improved.