The invention relates to the technical field of high-voltage insulating bushings, in particular to a mechanical explosion-proof structure of high-voltage bushing equipment. The structure comprises a bushing body and a conducting rod, and the conducting rod is arranged in the bushing body in a penetrating mode. The inner cavity of the bushing body is provided with an insulating medium, and a top pressure relief device is arranged at an upper end opening of the bushing body. A pressure relief cavity of the top pressure relief device is communicated with the inner cavity of the bushing bod. A bottom pressure relief device is arranged at a lower port of the bushing body, and a pressure relief cavity of the bottom pressure relief device is communicated with the inner cavity of the bushing body.The two ends of the conducting rod are respectively arranged on the top pressure relief device and the bottom pressure relief device in a penetrating mode. The structure is reasonable, and on the basis that the structure of an existing bushing type equipment body is not changed, the impact energy is relieved through the mechanical strength tolerance of a material, thereby avoiding the destructiveinfluence of explosion of the bushing body on surrounding objects and achieving the explosion-proof function. Moreover, the structure is easy to install, is convenient for the quick replacement of the existing bushing equipment, and is high in good engineering application and popularization values.