An electronic information safety crushing device

The invention relates to the technical field of electronic information security, especially relates to an electronic information safety crushing device which comprises a computer display, the computerdisplay is connected with a mainframe box through a wire; the mainframe box is provided with a multimedia external interface; the multimedia external interface is provided with an external joint; theouter joint is electrically connected with electronic information crushing equipment; a start button and a display screen are arranged on the electronic information crushing equipment; the mainframebox comprises a mainframe system, the mainframe system comprises a central processor, an interface voltage sensing module, a equipment driving module, a hard disk management module, an antivirus program and a memory, wherein the interface voltage sensing module, the equipment driving module, the hard disk management module, the antivirus program and the memory are electrically connected with the central processor, the elect