The invention provides a shock isolation device. The shock isolation device comprises a first connecting plate, at least three supporting components, a mounting core and a second connecting plate, thefirst connecting plate and the second connecting plate are horizontally arranged, and the mounting core is vertically arranged between the first connecting plate and the second connecting plate and located in the center. The at least three supporting components are arranged around the mounting core and are vertically arranged between the first connecting plate and the second connecting plate; first geometric structures are arranged on the lower end faces of the supporting components, and second geometric structures matched with the first geometric structures are arranged at the joint of the upper surface of the second connecting plate and the lower end faces of the supporting components, so that the shock insulation capacity is improved, and the service life is long; the technical schemeprovided by the invention is simple in structure, convenient to install, low in manufacturing cost, beneficial to maintenance of electrical equipment and high in engineering application feasibility; and moreover, the supporting components are all made of carbon steel or alloy steel, the mounting core is made of lead metal, the supporting components can be reset to the initial state under the action of dead weight, and normal operation of electrical equipment is not affected.