Lapping method of electromagnetic screen plywood with internal conductive layer

The invention discloses a method for lapping electromagnetic shielding plywood, in which a conducting layer is arranged. Specifically, the method comprises the steps of embedding lap joints made of metal foil and electrically connected with shielding layers along full length at the peripheral edges of each shielding layers of the plywood when the electromagnetic shielding plywood is manufactured; then electrically connecting shielding layers at the same layer on two spliced plywood into an integrated shielding layer by using the lap joints. In the invention, the metal lap joints arranged on the plywood are utilized to connect the shielding layers on two electromagnetic shielding plywood into a whole body electrically, thus resulting in simple structure and reliable connection. The method of the invention overcomes the technical obstacle to the actual engineering application of the electromagnetic shielding plywood.