The utility model discloses a computer-screening information leakage-prevention anti-electromagnetic interference device. The device includes a metal wire mesh. The device is characterized in that two sides of the metal wire mesh are respectively provided with a layer of ethylene/vinyl alcohol copolymer composite sheet, a layer of polycarbonate adhesive sheet, and a layer of glass sheet; the metal wire mesh, the ethylene/ vinyl alcohol copolymer composite sheets, the polycarbonate adhesive sheet and the glass sheets are thermally pressed to form an integral structure; the metal wire mesh is a 350-hole/square inch wire mesh; and the diameter of mesh wires of the metal wire mesh is 0.03mm. The computer-screening information leakage-prevention anti-electromagnetic interference device of the utility model is suitable for visible windows of electromagnetic shielding bodies such as computer electromagnetic shielding machine room, a computer electromagnetic protection machine table and a server electromagnetic protection machine cabinet, and can assist in solving the problems of harm to human bodies caused by electromagnetic waves, electromagnetic information leakage, external strong electromagnetic disturbance and poor barrier performance in the prior art. The computer-screening information leakage-prevention anti-electromagnetic interference device is advantageous in excellent visualization, favorable light transmission rate, long service life and the like.