This invention discloses a method of producing lightguide plate/ lightguide membrane mode kernel, according to the lightguide-demand, form lightguide network structure on the surface of the lightguide substrate, the features are: use of high-power pulsed lasers, through beam shaping, collimate light focused directly on the substrate surface etching lightguide networks, obtain lightguide plate monomeric unit, metallizing the surface of the lightguide plate monomeric unit etched, Further electroforming, meanwhile, In nickel metal deposited on the surface, make nickel metal deposited and lightguide substrate separated, then get the lightguide plate/ lightguide membrane mode kernel needed. At the same time, the lightguide plate monomeric unit etched can be used as backlight module, dispose other backlight module; the invention can detect the lightguide performance. This invention can be carried out rapid for evaluating the design of networks and providing samples, after metal processing and electroforming process, the lightguide plate/ lightguide membrane mode kernel can be made, greatly reducing the production cycle, simplify the process and reduce the cost ,have a faster market response capability.