Skirting line protection device with adjustable height

The utility model discloses a skirting line protection device capable of adjusting the height in the technical field of skirting line protection. The skirting line protection device comprises an adjusting protection plate, a positioning protection plate, an upper protection cover and a position covering rod. The adjusting protection plate and the positioning protection plate are of a vertically-arranged flat plate structure, and the upper protection cover is a long-strip-shaped cover plate. The upper protective cover is horizontally locked to the top of the adjusting protective plate, the upper protective cover extends out to cover the position over the inner side face of the adjusting protective plate, the adjusting protective plate is attached and locked to one side face of the positioning protective plate in a height-adjustable mode, and therefore a skirting line can be effectively covered and protected when paint is sprayed to the wall face, the skirting line cannot be polluted by sprayed paint, and the s