The invention relates to a safety protection switch. The switch comprises a base and a cover plate covering the base. The switch is characterized in that switching tube pins, a contact piece and a button assembly are arranged in the base; the switching tube pins are vertically arranged in the base and the bottom ends of the switching tube pins extend out of the bottom of the base; the button assembly comprises a pressing part with upper end extending out of the cover plate; a spring is arranged in the pressing part; the contact piece is fixed at the side of the pressing part and is fit with the upper parts of the switching tube pins; the pressing part is pressed and then drives the contact piece to slide downwards so that the surface of the contact piece is contacted with the two corresponding surfaces of the switching tube pins in a sliding manner; and a dustproof component is arranged on the part protruding out of the cover plate, of the pressing part on the cover plate. The switch has the following effects: the switch adopts a sliding type junction and can miss the dust when meeting the dust due to sliding of the junction, thus further ensuring long-term validity of the product; and meanwhile, each contact part is provided with a plurality of contact pins, thus substantially improving the reliability of the product relative to the switch with one junction.