A method for manufacturing a panel made of composite material incorporating a lightning protection arrangement which comprises strips with a conductive layer. The method comprises a step of laying the strips in an automated manner, the strips having a width of less than 20 mm and being distributed in a first set of mutually parallel strips that are laid in a first laying direction and a second set of mutually parallel strips that are laid in a second laying direction that intersects the first laying direction. A panel made of composite material manufactured by way of this method is also disclosed.